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| subdivision_type = Country| subdivision_name = TurkeyGeographical regions of Turkey>RegionProvinces of Turkey>ProvinceMarmara Region>MarmaraIstanbul Province>IstanbulWhere governor's office is located.}}| seat = CaÄŸaloÄŸlu, Fatih| parts_type = DistrictsList of districts of Istanbul>39Republican People's Party (Turkey)>CHPMayor#Turkey>Mayor| leader_name = Ekrem Ä°mamoÄŸluVali (governor)#Turkish term>Governor| leader_name1 = Ali YerlikayaWEBSITE=CITYMAYORS.COMTITLE=WALKING IN THE EUROPEAN CITYISBN=978-1-4724-1617-9 name=city-area}}| area_water_km2 =| area_urban_km2 = 1539| area_metro_km2 = 5,343.22| elevation_m = 39| population_total = 15,067,724| population_as_of = 31 December 2018TURKISH STATISTICAL INSTITUTE>TITLE=THE RESULTS OF ADDRESS BASED POPULATION REGISTRATION SYSTEM, 2018ACCESSDATE=1 FEBRUARY 2019, | population_density_km2 = 7664–12029| population_density_metro_km2 = 2,820List of cities in Turkey>1st in TurkeyPostal code| postal_code = 34000 to 34990| area_code = 212 (European side) 216 (Asian side)| registration_plate = 34| unemployment_rate =| blank_name_sec2 = GeoTLD| blank_info_sec2 = .ist, .istanbulweblink}} {{URLweblink}}| blank_name = GDP (Nominal)WORK=TURKSTAT.GOV.TR, GROSS DOMESTIC PRODUCT (GDP)>URL=HTTP://WWW.TURKSTAT.GOV.TR/HBGETIRHTML.DO?ID=27828,, | blank1_name =  - Total| blank1_info = US$ 266 billionAccording to the> US$ / TL = 3.648 (2017)-> Turkey = 3,106.537 billion TL (GDP Nominal)-> Ä°stanbul = 970.189 billion TL (GDP Nominal)-> Ä°stanbul = 65,410 TL (GDP Nominal per capita)- 31% of Turkey –| blank2_name =  - Per capita| blank2_info = US$ 18,000Human Development Index>HDI (2017)WEBSITE=HDI.GLOBALDATALAB.ORG, – very highTime in Turkey>TRT| utc_offset = +3| footnotes =

(i)(ii)(iii)(iv)| ID = 356bis| year = 1985| extension = 2017765.5acre|abbr=on}}}}}}Istanbul ({{IPAc-en|ˌ|ɪ|s|t|æ|n|ˈ|b|ʊ|l}},BOOK, Wells, John C., 2008, Longman Pronunciation Dictionary, 3rd, Longman, 978-1-4058-8118-0, BOOK, Upton, Clive, Kretzschmar, Jr., William A., 2017, The Routledge Dictionary of Pronunciation for Current English, 2nd, Routledge, 704, 978-1-138-12566-7, {{IPAc-en|also|US|ˈ|ɪ|s|t|æ|n|b|ʊ|l}}; {{IPA-tr|isˈtanbuɫ||Istanbul pronunciation.ogg}}), formerly known as Byzantium and Constantinople, is the most populous city in Turkey and the country's economic, cultural and historic center. Istanbul is a transcontinental city in Eurasia, straddling the Bosporus strait (which separates Europe and Asia) between the Sea of Marmara and the Black Sea. Its commercial and historical center lies on the European side and about a third of its population lives in suburbs on the Asian side of the Bosporus.{{harvnb|WCTR Society; Unʼyu Seisaku Kenkyū Kikō|2004|p=281}} With a total population of around 15 million residents in its metropolitan area, Istanbul is one of the world's most populous cities, ranking as the world's fourth largest city proper and the largest European city. The city is the administrative center of the Istanbul Metropolitan Municipality (coterminous with Istanbul Province).Founded under the name of Byzantion (Βυζάντιον) on the Sarayburnu promontory around 660 BCE,{{harvnb|Isaac|1986|page=218}} the city grew in size and influence, becoming one of the most important cities in history. After its reestablishment as Constantinople in 330 CE,{{ODB|title=Constantinople|last=Mango|first=Cyril|authorlink=Cyril Mango|pages=508–512}} it served as an imperial capital for almost 16 centuries, during the Roman/Byzantine (330–1204), Latin (1204–1261), Palaiologos Byzantine (1261–1453) and Ottoman (1453–1922) empires.{{harvnb|Çelik|1993|p=xv}} It was instrumental in the advancement of Christianity during Roman and Byzantine times, before the Ottomans conquered the city in 1453 CE and transformed it into an Islamic stronghold and the seat of the Ottoman Caliphate.{{harvnb|Masters|Ágoston|2009|pp=114–15}} Under the name Constantinople it was the Ottoman capital until 1923. The capital was then moved to Ankara and the city was renamed Istanbul.The city held the strategic position between the Black Sea and the Mediterranean. It was also on the historic Silk Road.{{harvnb|Dumper|Stanley|2007|p=320}} It controlled rail networks between the Balkans and the Middle East, and was the only sea route between the Black Sea and the Mediterranean. In 1923, after the Turkish War of Independence, Ankara was chosen as the new Turkish capital, and the city's name was changed to Istanbul. Nevertheless, the city maintained its prominence in geopolitical and cultural affairs. The population of the city has increased tenfold since the 1950s, as migrants from across Anatolia have moved in and city limits have expanded to accommodate them.{{harvnb|Turan|2010|p=224}}WEB,weblink Istanbul Metropolitan Municipality, Population and Demographic Structure, 2008, 27 March 2012, Istanbul 2010: European Capital of Culture, Arts, music, film, and cultural festivals were established towards the end of the 20th century and continue to be hosted by the city today. Infrastructure improvements have produced a complex transportation network in the city.Over {{nowrap|12 million}} foreign visitors came to Istanbul in 2015, five years after it was named a European Capital of Culture, making the city the world's fifth most popular tourist destination.WEB,weblink London Retains Crown in 2015 MasterCard Global Destinations Cities Index, MasterCard Social Newsroom, The city's biggest attraction is its historic center, partially listed as a UNESCO World Heritage Site, and its cultural and entertainment hub is across the city's natural harbor, the Golden Horn, in the Beyoğlu district. Considered a global city,WEB,weblink The World According to GaWC 2010, Globalization and World Cities (GaWC) Study Group and Network, Loughborough University, 8 May 2012, Istanbul has one of the fastest-growing metropolitan economies in the world.WEB,weblink Global Growth on the Orient Express, Berube, Alan, 1 December 2010, Brookings Institution blog "The Avenue", 14 April 2013, It hosts the headquarters of many Turkish companies and media outlets and accounts for more than a quarter of the country's gross domestic product.BOOK,weblink OECD Territorial Reviews: Istanbul, Turkey, The Organisation for Economic Co-operation and Development, March 2008, Policy Briefs, 978-92-64-04383-1, Hoping to capitalize on its revitalization and rapid expansion, Istanbul has bid for the Summer Olympics five times in twenty years.WEB,weblink The International Olympic Committee, IOC selects three cities as Candidates for the 2020 Olympic Games, 24 May 2012, 18 June 2012,


File:Rome-Capitole-StatueConstantin.jpg|left|thumb|upright|Constantine IConstantine IThe first known name of the city is Byzantium (, Byzántion), the name given to it at its foundation by Megarean colonists around 660 BCE.{{harvnb|Room|2006|p=177}} The name is thought to be derived from a personal name, Byzas. Ancient Greek tradition refers to a legendary king of that name as the leader of the Greek colonists. Modern scholars have also hypothesized that the name of Byzas was of local Thracian or Illyrian origin and hence predated the Megarean settlement.{{harvnb|Georgacas|1947|p=352ff.}}After Constantine the Great made it the new eastern capital of the Roman Empire in 330 CE, the city became widely known as Constantinople, which, as the Latinized form of "" (Konstantinoúpolis), means the "City of Constantine". He also attempted to promote the name "Nova Roma" and its Greek version "" Nea Romē (New Rome), but this did not enter widespread usage.{{harvnb|Gregory|2010|pp=62–63}} Constantinople remained the most common name for the city in the West until the establishment of the Turkish Republic, which urged other countries to use Istanbul.{{harvnb|Room|2006|pp=177–78}}{{harvnb|Göktürk|Soysal|Türeli|2010|p=7}} Kostantiniyye () and Be Makam-e Qonstantiniyyah al-Mahmiyyah (meaning "the Protected Location of Constantinople") and İstanbul were the names used alternatively by the Ottomans during their rule.{{harvnb|Necipoğlu|2010|p=262}} Although historically accurate, the use of Constantinople to refer to the city during the Ottoman period is, as of 2009, often considered by Turks to be "politically incorrect".{{harvnb|Masters|Ágoston|2009|p=286}}By the 19th century, the city had acquired other names used by either foreigners or Turks. Europeans used Constantinople to refer to the whole of the city, but used the name Stamboul—as the Turks also did—to describe the walled peninsula between the Golden Horn and the Sea of Marmara. Pera (from the Greek word for "across") was used to describe the area between the Golden Horn and the Bosphorus, but Turks also used the name Beyoğlu (today the official name for one of the city's constituent districts).{{harvnb|Masters|Ágoston|2009|pp=226–27}}The name İstanbul ({{IPA-tr|isˈtanbuɫ|3=Istanbul pronunciation.ogg}}, colloquially {{IPA-tr|ɯsˈtambuɫ|}}) is commonly held to derive from the Medieval Greek phrase (pronounced {{IPA-el|is tim ˈbolin|}}), which means "to the city"Necdet Sakaoğlu (1993/94a): "İstanbul'un adları" ["The names of Istanbul"]. In: Dünden bugüne İstanbul ansiklopedisi, ed. Türkiye Kültür Bakanlığı, Istanbul. and is how Constantinople was referred to by the local Greeks. This reflected its status as the only major city in the vicinity. The importance of Constantinople in the Ottoman world was also reflected by its Ottoman name 'Der Saadet' meaning the 'gate to Prosperity' in Ottoman. An alternative view is that the name evolved directly from the name Constantinople, with the first and third syllables dropped. A Turkish folk etymology traces the name to Islam bol "plenty of Islam"WEB, Online Etymology Dictionary,weblink 26 June 2015, because the city was called Islambol ("plenty of Islam") or Islambul ("find Islam") as the capital of the Islamic Ottoman Empire. It is first attested shortly after the conquest, and its invention was ascribed by some contemporary writers to Sultan Mehmed II himself.Necdet Sakaoğlu (1993/94a): "İstanbul'un adları" ["The names of Istanbul"]. In: 'Dünden bugüne İstanbul ansiklopedisi', ed. Türkiye Kültür Bakanlığı, Istanbul. Some Ottoman sources of the 17th century, such as Evliya Çelebi, describe it as the common Turkish name of the time; between the late 17th and late 18th centuries, it was also in official use. The first use of the word "Islambol" on coinage was in 1703 (1115 AH) during the reign of Sultan Ahmed III.{{harvnb|Finkel|2005|pp=57, 383}}In modern Turkish, the name is written as İstanbul, with a dotted İ, as the Turkish alphabet distinguishes between a dotted and dotless I. In English the stress is on the first or last syllable, but in Turkish it is on the second syllable (tan).{{harvnb|Göksel|Kerslake|2005|p=27}} A person from the city is an İstanbullu (plural: İstanbullular), although Istanbulite is used in English.{{harvnb|Keyder|1999|p=95}}


{{see also|Timeline of Istanbul history}}File:Second Court Topkapi 2007 80.JPG|thumb|Remains of a Byzantine column of Byzantium's acropolis, located today within the alt=A stout cylindrical column in a courtyard in front of palatial arches of Islamic styleNeolithic artifacts, uncovered by archeologists at the beginning of the 21st century, indicate that Istanbul's historic peninsula was settled as far back as the 6th millennium BCE.NEWS, Rainsford, Sarah,weblink BBC, Istanbul's ancient past unearthed, 10 January 2009, 21 April 2010, That early settlement, important in the spread of the Neolithic Revolution from the Near East to Europe, lasted for almost a millennium before being inundated by rising water levels.JOURNAL, Algan, O., Yalçın, M.N.K., Özdoğan, M., Yılmaz, Y.C., Sarı, E., Kırcı-Elmas, E., Yılmaz, İ., Bulkan, Ö., Ongan, D., Gazioğlu, C., Nazik, A., Polat, M.A., Meriç, E., Holocene coastal change in the ancient harbor of Yenikapı–İstanbul and its impact on cultural history, 10.1016/j.yqres.2011.04.002, Quaternary Research, 76, 1, 30, 2011, 2011QuRes..76...30A, BBC: "Istanbul's ancient past unearthed" Published on 10 January 2007. Retrieved on 3 March 2010.WEB,weblink Bu keşif tarihi değiştirir,, WEB,weblink Marmaray kazılarında tarih gün ışığına çıktı,, The first human settlement on the Asian side, the Fikirtepe mound, is from the Copper Age period, with artifacts dating from 5500 to 3500 BCE,WEB,weblinkweblink" title="">weblink 12 September 2007, Cultural Details of Istanbul, Republic of Turkey, Minister of Culture and Tourism, 2 October 2007, On the European side, near the point of the peninsula (Sarayburnu), there was a Thracian settlement during the early 1st millennium BCE. Modern authors have linked it to the Thracian toponym Lygos,BOOK, Constantinople byzantine, Janin, Raymond, Raymond Janin, Paris, Institut Français d'Études Byzantines, 1964, 10ff, mentioned by Pliny the Elder as an earlier name for the site of Byzantium.WEB,weblink Pliny the Elder, book IV, chapter XI: "On leaving the Dardanelles we come to the Bay of Casthenes, ... and the promontory of the Golden Horn, on which is the town of Byzantium, a free state, formerly called Lygos; it is 711 miles from Durazzo, ...", 21 June 2015,weblink" title="">weblink 1 January 2017, dead, The history of the city proper begins around 660 BCE,{{harvnb|Bloom|Blair|2009|p=1}}{{efn|name=byz-date|The foundation of Byzantion (Byzantium) is sometimes, especially in encyclopedic or other tertiary sources, placed firmly in 667 BCE. Historians have disputed the precise year the city was founded. Commonly cited is the work of 5th-century-BCE historian Herodotus, which says the city was founded seventeen years after Chalcedon,Herodotus Histories 4.144, translated in {{harvnb|De Sélincourt|2003|p=288}} which came into existence around 685 BCE. Eusebius concurs with 685 BCE as the year Chalcedon was founded, but places Byzantion's establishment in 659 BCE.{{harvnb|Isaac|1986|p=199}} Among more modern historians, Carl Roebuck proposed the 640s BCE{{harvnb|Roebuck|1959|p=119}}, also as mentioned in {{harvnb|Isaac|1986|p=199}} and others have suggested even later. The foundation date of Chalcedon is itself subject to some debate; while many sources place it in 685 BC,{{harvnb|Lister|1979|p=35}} others put it in 675 BCE{{harvnb|Freely|1996|p=10}} or even 639 BCE (with Byzantion's establishment placed in 619 BCE). Some sources refer to Byzantium's foundation as the 7th century BCE.}} when Greek settlers from Megara established Byzantium on the European side of the Bosphorus. The settlers built an acropolis adjacent to the Golden Horn on the site of the early Thracian settlements, fueling the nascent city's economy.{{harvnb|Çelik|1993|p=11}} The city experienced a brief period of Persian rule at the turn of the 5th century BCE, but the Greeks recaptured it during the Greco-Persian Wars.{{harvnb|De Souza|2003|p=88}} Byzantium then continued as part of the Athenian League and its successor, the Second Athenian League, before gaining independence in 355 BCE.{{harvnb|Freely|1996|p=20}} Long allied with the Romans, Byzantium officially became a part of the Roman Empire in 73 CE.{{harvnb|Freely|1996|p=22}} Byzantium's decision to side with the Roman usurper Pescennius Niger against Emperor Septimius Severus cost it dearly; by the time it surrendered at the end of 195 CE, two years of siege had left the city devastated.{{harvnb|Grant|1996|pp=8–10}} Five years later, Severus began to rebuild Byzantium, and the city regained—and, by some accounts, surpassed—its previous prosperity.{{harvnb|Limberis|1994|pp=11–12}}

Rise and fall of Constantinople and the Byzantine Empire

File:Map of Constantinople (1422) by Florentine cartographer Cristoforo Buondelmonte.jpg|left|upright|thumb|Created in 1422 by alt=A crudely drawn map depicting a walled city on a peninsula with a park, a network of roads, and a scattering of buildingsConstantine the Great effectively became the emperor of the whole of the Roman Empire in September 324.{{harvnb|Barnes|1981|p=77}} Two months later, he laid out the plans for a new, Christian city to replace Byzantium. As the eastern capital of the empire, the city was named Nova Roma; most called it Constantinople, a name that persisted into the 20th century.{{harvnb|Barnes|1981|p=212}} On 11 May 330, Constantinople was proclaimed the capital of the Roman Empire, which was later permanently divided between the two sons of Theodosius I upon his death on 17 January 395, when the city became the capital of the Eastern Roman (Byzantine) Empire.{{harvnb|Barnes|1981|p=222}}The establishment of Constantinople was one of Constantine's most lasting accomplishments, shifting Roman power eastward as the city became a center of Greek culture and Christianity.{{harvnb|Gregory|2010|p=63}} Numerous churches were built across the city, including Hagia Sophia which was built during the reign of Justinian the Great and remained the world's largest cathedral for a thousand years.{{harvnb|Klimczuk|Warner|2009|p=171}} Constantine also undertook a major renovation and expansion of the Hippodrome of Constantinople; accommodating tens of thousands of spectators, the hippodrome became central to civic life and, in the 5th and 6th centuries, the center of episodes of unrest, including the Nika riots.WEB, Dash, Mike,weblink Blue Versus Green: Rocking the Byzantine Empire, The Smithsonian Institution, Smithsonian Magazine, 2 March 2012, 30 July 2012, {{harvnb|Dahmus|1995|p=117}} Constantinople's location also ensured its existence would stand the test of time; for many centuries, its walls and seafront protected Europe against invaders from the east and the advance of Islam. During most of the Middle Ages, the latter part of the Byzantine era, Constantinople was the largest and wealthiest city on the European continent and at times the largest in the world.{{harvnb|Cantor|1994|p=226}}{{harvnb|Morris|2010|pp=109–18}}Constantinople began to decline continuously after the end of the reign of Basil II in 1025. The Fourth Crusade was diverted from its purpose in 1204, and the city was sacked and pillaged by the crusaders.{{harvnb|Gregory|2010|pp=324–29}} They established the Latin Empire in place of the Orthodox Byzantine Empire.{{harvnb|Gregory|2010|pp=330–33}} Hagia Sophia was converted to a Catholic church in 1204. The Byzantine Empire was restored, albeit weakened, in 1261.{{harvnb|Gregory|2010|p=340}} Constantinople's churches, defenses, and basic services were in disrepair,{{harvnb|Gregory|2010|pp=341–42}} and its population had dwindled to a hundred thousand from half a million during the 8th century.{{efn|name=pop-figures}} After the reconquest of 1261, however, some of the city's monuments were restored, and some, like the two Deisis mosaics in Hagia Sofia and Kariye, were created.Various economic and military policies instituted by Andronikos II, such as the reduction of military forces, weakened the empire and left it vulnerable to attack.{{harvnb|Reinert|2002|pp=258–60}} In the mid-14th-century, the Ottoman Turks began a strategy of gradually taking smaller towns and cities, cutting off Constantinople's supply routes and strangling it slowly.{{harvnb|Baynes|1949|p=47}} On 29 May 1453, after an eight-week siege (during which the last Roman emperor, Constantine XI, was killed), Sultan Mehmed II "the Conqueror" captured Constantinople and declared it the new capital of the Ottoman Empire. Hours later, the sultan rode to the Hagia Sophia and summoned an imam to proclaim the Islamic creed, converting the grand cathedral into an imperial mosque due to the city's refusal to surrender peacefully.{{harvnb|Gregory|2010|pp=394–99}} Mehmed declared himself as the new "Kaysar-i Rûm" (the Ottoman Turkish equivalent of Caesar of Rome) and the Ottoman state was reorganized into an empire.{{harvnb|Béhar|1999|p=38}}; {{harvnb|Bideleux|Jeffries|1998|p=71}}.

Ottoman Empire and Turkish Republic eras

{{Multiple image|align=right|direction=vertical|image1=Aivazovsky - View of Constantinople and the Bosphorus.jpg|image2=Ivan Constantinovich Aivazovsky - Dusk on the Golden Horn.JPG|image3=View of constantinople by evening light.jpg|caption3=Three paintings of the Ottoman era city by Ivan Aivazovsky}}Following the conquest of Constantinople{{efn|name=Stamboul|In the Ottoman period the inner core of the city, inside the city walls, came to be known as "İstanbul" in Turkish and "Stamboul" in the West. The whole city was generally known as Constantinople or under other names. See Names of Istanbul for further information.Edhem, Eldem. "Istanbul." In: Ágoston, Gábor and Bruce Alan Masters. Encyclopedia of the Ottoman Empire. Infobase Publishing, 21 May 2010. {{ISBN|1438110251}}, 9781438110257. Start and CITED: p. 286. "Originally, the name Istanbul referred only to[...]in the 18th century." and "For the duration of Ottoman rule, western sources continued to refer to the city as Constantinople, reserving the name Stamboul for the walled city." and "Today the use of the name[...]is often deemed politically incorrect[...]by most Turks." (entry ends, with author named, on p. [ 290])}}, Mehmed II immediately set out to revitalize the city. He urged the return of those who had fled the city during the siege, and resettled Muslims, Jews, and Christians from other parts of Anatolia. He demanded that five thousand households needed to be transferred to Constantinople by September.Inalcik, Halil. "The Policy of Mehmed II toward the Greek Population of Istanbul and the Byzantine Buildings of the City." Dumbarton Oaks Papers 23, (1969): 229–49. p. 236 From all over the Islamic empire, prisoners of war and deported people were sent to the city: these people were called "Sürgün" in Turkish ().Müller-Wiener, Wolfgang (1977). Bildlexikon zur Topographie Istanbuls: Byzantion, Konstantinupolis, Istanbul bis zum Beginn d. 17 Jh (in German). Tübingen: Wasmuth. {{ISBN|978-3-8030-1022-3}}. Many people escaped again from the city, and there were several outbreaks of plague, so that in 1459 Mehmet allowed the deported Greeks to come back to the city.Müller-Wiener (1977), p. 28 He also invited people from all over Europe to his capital, creating a cosmopolitan society that persisted through much of the Ottoman period.{{harvnb|Holt|Lambton|Lewis|1977|pp=306–07}} Plague continued to be essentially endemic in Constantinople for the rest of the century, as it had been from 1520, with a few years of respite between 1529 and 1533, 1549 and 1552, and from 1567 to 1570; epidemics originating in the West and in the Hejaz and southern Russia.Joseph Patrick Byrne, Encyclopedia of the Black Death, Volume 1, p. 87 Population growth in Anatolia allowed Constantinople to replace its losses and maintain its population of around 500,000 inhabitants down to 1800. Mehmed II also repaired the city's damaged infrastructure, including the whole water system, began to build the Grand Bazaar, and constructed Topkapı Palace, the sultan's official residence.{{harvnb|Holt|Lambton|Lewis|1977|p=307}} With the transfer of the capital from Edirne (formerly Adrianople) to Constantinople, the new state was declared as the successor and continuation of the Roman Empire.{{harvnb|Tarasov|Milner-Gulland|2004|p=121}}; {{harvnb|El-Cheikh|2004|p=22}}.File:Flickr - …trialsanderrors - Kara-Kevi (Galata) and view of Pera, Constantinople, Turkey, ca. 1895.jpg|thumb|left|The first Galata BridgeGalata BridgeThe Ottomans quickly transformed the city from a bastion of Christianity to a symbol of Islamic culture. Religious foundations were established to fund the construction of ornate imperial mosques, often adjoined by schools, hospitals, and public baths. The Ottoman Dynasty claimed the status of caliphate in 1517, with Constantinople remaining the capital of this last caliphate for four centuries. Suleiman the Magnificent's reign from 1520 to 1566 was a period of especially great artistic and architectural achievement; chief architect Mimar Sinan designed several iconic buildings in the city, while Ottoman arts of ceramics, stained glass, calligraphy, and miniature flourished.{{harvnb|Holt|Lambton|Lewis|1977|pp=735–36}} The population of Constantinople was 570,000 by the end of the 18th century.BOOK, Chandler, Tertius, Fox, Gerald, 3000 Years of Urban Growth, 1974, Academic Press, London, 978-0-12-785109-9, harv,weblink A period of rebellion at the start of the 19th century led to the rise of the progressive Sultan Mahmud II and eventually to the Tanzimat period, which produced political reforms and allowed new technology to be introduced to the city.{{harvnb|Shaw|Shaw|1977|pp=4–6, 55}} Bridges across the Golden Horn were constructed during this period,{{harvnb|Çelik|1993|pp=87–89}} and Constantinople was connected to the rest of the European railway network in the 1880s.{{harvnb|Harter|2005|p=251}} Modern facilities, such as a water supply network, electricity, telephones, and trams, were gradually introduced to Constantinople over the following decades, although later than to other European cities.{{harvnb|Shaw|Shaw|1977|pp=230, 287, 306}} The modernization efforts were not enough to forestall the decline of the Ottoman Empire.{{multiple image| align = left| image1 = Aerial view of Istanbul 19 March 1918.jpg| width1 = 175| alt1 =| caption1 =| image2 = Aerial view of Istanbul on 19 March 1918.jpg| width2 = 175| alt2 =| caption2 =| footer = Two aerial photos showing the Golden Horn and the Bosphorus, taken from a German zeppelin on 19 March 1918}}Sultan Abdul Hamid II was deposed with the Young Turk Revolution in 1908 and the Ottoman Parliament, closed since 14 February 1878, was reopened 30 years later on 23 July 1908, which marked the beginning of the Second Constitutional Era.WEB,weblink Meclis-i Mebusan (Mebuslar Meclisi), Tarihi Olaylar, A series of wars in the early 20th century, such as the Italo-Turkish War (1911–1912) and the Balkan Wars (1912–1913), plagued the ailing empire's capital and resulted in the 1913 Ottoman coup d'état, which brought the regime of the Three Pashas.{{harvnb|Çelik|1993|p=31}}File:Bankalar Caddesi in the 1920's.jpg|thumb|200px|A view of Bankalar Caddesi (Banks Street) in the late 1920s. Completed in 1892, the Ottoman Central Bank headquarters is seen at left. In 1995 the Istanbul Stock Exchange moved to İstinye, while numerous Turkish banks have moved to Levent and MaslakMaslakThe Ottoman Empire joined World War I (1914–1918) on the side of the Central Powers and was ultimately defeated. The deportation of Armenian intellectuals on 24 April 1915 was among the major events which marked the start of the Armenian Genocide during WWI.BOOK, Freedman, Jeri, The Armenian genocide, 2009, Rosen Pub. Group, New York, 978-1-4042-1825-3, 21–22, 1st, {{Google books, cuqxYldvClQC, yes, }} As a result of the war and the events in its aftermath, the city's Christian population declined from 450,000 to 240,000 between 1914 and 1927.Globalization, Cosmopolitanism, and the Dönme in Ottoman Salonica and Turkish Istanbul. Marc Baer, University of California, Irvine. The Armistice of Mudros was signed on 30 October 1918 and the Allies occupied Constantinople on 13 November 1918. The Ottoman Parliament was dissolved by the Allies on 11 April 1920 and the Ottoman delegation led by Damat Ferid Pasha was forced to sign the Treaty of Sèvres on 10 August 1920.Following the Turkish War of Independence (1919–1922), the Grand National Assembly of Turkey in Ankara abolished the Sultanate on 1 November 1922, and the last Ottoman Sultan, Mehmed VI, was declared persona non-grata. Leaving aboard the British warship HMS Malaya on 17 November 1922, he went into exile and died in Sanremo, Italy, on 16 May 1926. The Treaty of Lausanne was signed on 24 July 1923, and the occupation of Constantinople ended with the departure of the last forces of the Allies from the city on 4 October 1923.WEB,weblink 6 Ekim İstanbul'un Kurtuluşu, Sözcü, 6 October 2017, Turkish forces of the Ankara government, commanded by Şükrü Naili Pasha (3rd Corps), entered the city with a ceremony on 6 October 1923, which has been marked as the Liberation Day of Istanbul (Turkish: İstanbul'un Kurtuluşu) and is commemorated every year on its anniversary. On 29 October 1923 the Grand National Assembly of Turkey declared the establishment of the Turkish Republic, with Ankara as its capital. Mustafa Kemal Atatürk became the Republic's first President.{{harvnb|Landau|1984|p=50}}Ankara was selected as Turkey's capital in 1923 to distance the new, secular republic from its Ottoman history.{{harvnb|Dumper|Stanley|2007|p=39}} According to historian Philip Mansel:
after the departure of the dynasty in 1925, from being the most international city in Europe, Constantinople became one of the most nationalistic....Unlike Vienna, Constantinople turned its back on the past. Even its name was changed. Constantinople was dropped because of its Ottoman and international associations. From 1926 the post office only accepted Istanbul; it appeared more Turkish and was used by most Turks.Philip Mansel. Constantinople: City of the World's Desire, 1453–1924 (2011)
From the late 1940s and early 1950s, Istanbul underwent great structural change, as new public squares, boulevards, and avenues were constructed throughout the city, sometimes at the expense of historical buildings.{{harvnb|Keyder|1999|pp=11–12, 34–36}} The population of Istanbul began to rapidly increase in the 1970s, as people from Anatolia migrated to the city to find employment in the many new factories that were built on the outskirts of the sprawling metropolis. This sudden, sharp rise in the city's population caused a large demand for housing, and many previously outlying villages and forests became engulfed into the metropolitan area of Istanbul.{{harvnb|Efe|Cürebal|2011|pp=718–19}}{{wide image|Galata Kulesi 'nden panorama.jpg|1550px|align-cap=center|A panoramic view of Ottoman era Istanbul from Galata Tower in the 19th century ((:commons:File:Galata Kulesi 'nden panorama.jpg|image with notes))}}


{{Further|Geography of Turkey|Geology of Turkey}}File:West-turkey-plates-cropped.gif|thumb|left|Faults in western Turkey are concentrated just southwest of Istanbul, passing under the Sea of Marmara and the alt=A high concentration of fault lines in northwestern Turkey, where the Eurasian and African plates meet; a few faults and ridges also appear under the MediterraneanFile:Istambul and Bosporus big.jpg|thumb|right|Satellite view of Istanbul and the Bosphorus alt=Satellite image showing a thin piece of land, densely populated on the south, bisected by a waterway(File:Istanbul topographic map.jpg|thumb|right|Topography of Istanbul)Istanbul is in north-western Turkey within the Marmara Region on a total area of {{convert|5343|km2|sqmi|sp=us}}.{{efn|name=city-area|Sources have provided conflicting figures on the area of Istanbul. The most authoritative source on this figure ought to be the Istanbul Metropolitan Municipality (MMI), but the English version of its website suggests a few figures for this area. One page states that "Each MM is sub-divided into District Municipalities ("DM") of which there are 27 in Istanbul" [emphasis added] with a total area of {{convert|1538.9|km2|sqmi|sp=us}}.WEB,weblink Districts, Istanbul Metropolitan Municipality, 21 December 2011, The Municipal History page appears to be the most explicit and most updated, saying that in 2004, "Istanbul Metropolitan Municipality's jurisdiction was enlarged to cover all the area within the provincial limits". It also states a 2008 law merged the Eminönü district into the Fatih district (a point that is not reflected in the previous source) and increased the number of districts in Istanbul to 39.WEB,weblink History of Local Governance in Istanbul, Istanbul Metropolitan Municipality, 21 December 2011, That total area, as corroborated on the Turkish version of the MMI website,WEB,weblink İstanbul İl ve İlçe Alan Bilgileri, Istanbul Metropolitan Municipality, 20 June 2010, Turkish, Istanbul Province and District Area Information, and a Jurisdiction page on the English siteWEB,weblink Jurisdiction, Istanbul Metropolitan Municipality, 21 December 2011, is {{convert|5343|km2|sqmi|sp=us}}.}} The Bosphorus, which connects the Sea of Marmara to the Black Sea, divides the city into a European, Thracian side—comprising the historic and economic centers—and an Asian, Anatolian side. The city is further divided by the Golden Horn, a natural harbor bounding the peninsula where the former Byzantium and Constantinople were founded. The confluence of the Sea of Marmara, the Bosphorus, and the Golden Horn at the heart of present-day Istanbul has deterred attacking forces for thousands of years and remains a prominent feature of the city's landscape.Following the model of Rome, the historic peninsula is said to be characterized by seven hills, each topped by imperial mosques. The easternmost of these hills is the site of Topkapı Palace on the Sarayburnu.WEB,weblinkweblink" title="">weblink 17 May 2009, Governorship of Istanbul, Istanbul from a Bird's Eye View, 13 June 2010, Rising from the opposite side of the Golden Horn is another, conical hill, where the modern Beyoğlu district is. Because of the topography, buildings in Beyoğlu were once constructed with the help of terraced retaining walls, and roads were laid out in the form of steps. Üsküdar on the Asian side exhibits similarly hilly characteristics, with the terrain gradually extending down to the Bosphorus coast, but the landscape in Şemsipaşa and Ayazma is more abrupt, akin to a promontory. The highest point in Istanbul is Çamlıca Hill, with an altitude of {{convert|288|m|ft|sp=us}}.WEB,weblink Republic of Turkey Ministry of Culture and Tourism, The Topography of İstanbul, 19 June 2012, The northern half of Istanbul has a higher mean elevation compared to the south coast, with locations surpassing {{convert|200|m|ft|sp=us}}, and some coasts with steep cliffs resembling fjords, especially around the northern end of the Bosphorus, where it opens up to the Black Sea.Istanbul is near the North Anatolian Fault, close to the boundary between the African and Eurasian Plates. This fault zone, which runs from northern Anatolia to the Sea of Marmara, has been responsible for several deadly earthquakes throughout the city's history. Among the most devastating of these seismic events was the 1509 earthquake, which caused a tsunami that broke over the walls of the city and killed more than 10,000 people. More recently, in 1999, an earthquake with its epicenter in nearby İzmit left 18,000 people dead, including 1,000 people in Istanbul's suburbs. The people of Istanbul remain concerned that an even more catastrophic seismic event may be in the city's near future, as thousands of structures recently built to accommodate Istanbul's rapidly increasing population may not have been constructed properly.NEWS, Revkin, Andrew C., Disaster Awaits Cities in Earthquake Zones,weblink The New York Times, 24 February 2010, 13 June 2010, Seismologists say the risk of a 7.6-magnitude or greater earthquake striking Istanbul by 2030 is more than {{nowrap|60 percent}}.JOURNAL, 10.1126/science.288.5466.661, Parsons, Tom, Toda, Shinji, Stein, Ross S., Barka, Aykut, Dieterich, James H., 2000, Heightened Odds of Large Earthquakes Near Istanbul: An Interaction-Based Probability Calculation, Science, 10784447, Washington, DC, 288, 5466, 661–65, harv, 2000Sci...288..661P,weblink NEWS, Traynor, Ian, A Disaster Waiting to Happen – Why a Huge Earthquake Near Istanbul Seems Inevitable,weblink The Guardian, UK, 9 December 2006, 13 June 2010,


File:Fog-over-istanbul-skyscrapers.jpg|thumb|left|Fog, seen here shrouding alt=Skyscrapers, both near and far, soar above a dense layer of fog that keeps the ground hidden from view.File:Istanbul-precipitation.png|thumb|right|Contrasting annual precipitationprecipitationFile:Istanbul Köppen Map.png|thumb|right|Microclimates of Istanbul according to Köppen–Geiger classification system ]]In the Köppen–Geiger classification system, Istanbul has a borderline Mediterranean climate (Csa), humid subtropical climate (Cfa) and oceanic climate (Cfb), due to its location in a transitional climatic zone. Since precipitation in summer months ranges from {{convert|20|to|65|mm|0|abbr=on}}, depending on location, the city cannot be classified as solely Mediterranean or humid subtropical.JOURNAL,weblink Markus, Kottek, Jürgen, Grieser, Christoph, Beck, Bruno, Rudolf, Franz, Rube, World Map of the Köppen-Geiger climate classification updated, Meteorologische Zeitschrift, June 2006, 15, 3, 259–63, 29 March 2013, 10.1127/0941-2948/2006/0130, 2006MetZe..15..259K, JOURNAL, M.C., Peel, B. L., Finlayson, T. A., McMahon, Updated world map of the Köppen-Geiger climate classification, Hydrology and Earth System Sciences, 2007, 4, 439–73, 10.5194/hessd-4-439-2007, 2,weblink WEB,weblink Turkish, Total Participation Data: August, Turkish State Meteorological Service, 6 July 2012, dead,weblink" title="">weblink 16 May 2012, Due to its size, diverse topography, maritime location and most importantly having a coastline to two different bodies of water to the north and south, Istanbul exhibits microclimates. The northern half of the city, as well as the Bosporus coastline, express characteristics of oceanic and humid subtropical climates, because of humidity from the Black Sea and the relatively high concentration of vegetation. The climate in the populated areas of the city to the south, on the Sea of Marmara, is warmer, drier and less affected by humidity.{{harvnb|Efe|Cürebal|2011|pp=716–17}} The annual precipitation in the northern half can be twice as much (Bahçeköy, 1166.6 mm), than it is in the southern, Marmara coast (Florya 635.0 mm).WEB,weblink Comparisons of Annual Meanprecipations of Annual Meanprecipitation Gridded and Station Data: An Example from Istanbul, Turkey Yıllık Ortalama GridlenmiÅŸ Yağış Verisi ve Ä°stasyon Yağış Verisinin KarşılaÅŸtırılması, Ä°stanbul ÖrneÄŸi – USTAOÄžLU – Marmara CoÄŸrafya Dergisi,, 12 February 2016, There is a significant difference between annual mean temperatures on the north and south coasts as well, Bahçeköy {{convert|12.8|C|F|abbr=on}}, Kartal {{convert|15.03|C|F|abbr=on}}.WEB,weblink Hüsnuü Yazici YasdiÄŸi Konular, belgrat,, 12 February 2016, Parts of the province that are away from both seas exhibit considerable continental influences, with much more pronounced night-day and summer-winter temperature differences. In winter some parts of the province average freezing or below at night.Istanbul's persistently high humidity reaches {{nowrap|80 percent}} most mornings.WEB,weblink BBC Weather Centre, World Weather, Weather – Istanbul, 15 October 2012, Because of this, fog is very common, although more so in northern parts of the city and away from the city center. Dense fog disrupts transportation in the region, including on the Bosphorus, and is common during the autumn and winter months when the humidity remains high into the afternoon.WEB,weblink Istanbul Enshrouded in Dense Fog, Turkish Daily News, 14 January 2005, 15 October 2012, WEB,weblink Today's Zaman, 23 November 2009, 15 October 2012, Thick Fog Causes Disruption, Flight Delays in Ä°stanbul, dead,weblink" title="">weblink 4 November 2013, WEB,weblink Today's Zaman, Dense Fog Disrupts Life in Istanbul, 6 November 2010, 15 October 2012, dead,weblink" title="">weblink 4 November 2013, The humid conditions and the fog tend to dissipate by midday during the summer months, but the lingering humidity exacerbates the moderately high summer temperatures.WEB, Pelit, Attila,weblinkweblink" title="">weblink 14 December 2011, TimeOut Istanbul, When to Go to Istanbul, 19 December 2011, During these summer months, high temperatures average around {{convert|29|°C|°F|abbr=on}} and rainfall is uncommon; there are only about fifteen days with measurable precipitation between June and August.WEB,weblink Resmi Ä°statistikler (Ä°l ve Ä°lçelerimize Ait Ä°statistiki Veriler), Official Statistics (Statistical Data of Provinces and Districts) – Istanbul, Turkish State Meteorological Service, Turkish, 10 August 2015, The summer months also have the highest concentration of thunderstorms.{{harvnb|Quantic|2008|p=155}}Winter is colder in Istanbul than in most other cities around the Mediterranean Basin, with low temperatures averaging {{convert|1|-|4|C|F|abbr=on}}. Lake-effect snow from the Black Sea is common, although difficult to forecast, with the potential to be heavy and—as with the fog—disruptive to the city's infrastructure.JOURNAL, Kindap, Tayfin, A Severe Sea-Effect Snow Episode Over the City of Istanbul, Natural Hazards, 54, 3, 19 January 2010, 703–23, 1573-0840, harv, 10.1007/s11069-009-9496-7, Spring and autumn are mild, but often wet and unpredictable; chilly winds from the northwest and warm gusts from the south—sometimes in the same day—tend to cause fluctuations in temperature.WEB,weblink Turkish Daily News, Istanbul Winds Battle Over the City, 17 October 2009, 15 October 2012, Overall, Istanbul has an annual average of {{nowrap|130 days}} with significant precipitation, which amounts to {{convert|810|mm|in|1|sp=us}} per year.WEB,weblink Yıllık Toplam Yağış Verileri, Turkish, Annual Total Participation Data: Istanbul, Turkey, Turkish State Meteorological Service, 6 July 2012, The highest and lowest temperatures ever recorded in the city center on the Marmara coast are {{convert|40.5|°C|0}} and {{convert|-16.1|°C|0}}. The greatest rainfall recorded in a day is {{convert|227|mm|in|sp=us}}, and the highest recorded snow cover is {{convert|80|cm|in|sp=us}}.WEB,weblink Ä°stanbul Bölge Müdürlüğü'ne BaÄŸlı Ä°stasyonlarda Ölçülen Ekstrem DeÄŸerler, Turkish, Extreme Values Measured in Istanbul Regional Directorate, Turkish State Meteorological Service, 27 July 2010, dead,weblink" title="">weblink 24 May 2011, JOURNAL, March 1987 Cyclone (Blizzard) over the Eastern Mediterranean and Balkan Region Associated with Blocking, Monthly Weather Review, 126, 11, 3036, 10.1175/1520-0493(1998)1262.0.CO;2, 1998, Tayanç, Mete, Karaca, Mehmet, Dalfes, H. Nüzhet, 1998MWRv..126.3036T, {{Weather box| location = Istanbul (Sarıyer), 1929–2017| metric first = yes| single line = yes| Jan record high C = 22.0| Feb record high C = 24.7| Mar record high C = 29.3| Apr record high C = 33.6| May record high C = 34.5| Jun record high C = 40.2| Jul record high C = 41.5| Aug record high C = 40.5| Sep record high C = 39.5| Oct record high C = 34.2| Nov record high C = 27.8| Dec record high C = 25.5|year record high C = 41.5| Jan high C = 8.4| Feb high C = 9.0| Mar high C = 10.9| Apr high C = 15.4| May high C = 20.0| Jun high C = 24.6| Jul high C = 26.6| Aug high C = 26.8| Sep high C = 23.7| Oct high C = 19.1| Nov high C = 14.8| Dec high C = 10.8|year high C = 17.5|Jan mean C = 6.0|Feb mean C = 6.1|Mar mean C = 7.7|Apr mean C = 12.0|May mean C = 16.7|Jun mean C = 21.4|Jul mean C = 23.8|Aug mean C = 23.8|Sep mean C = 20.1|Oct mean C = 15.7|Nov mean C = 11.7|Dec mean C = 8.3|year mean C = 14.4| Jan low C = 3.1| Feb low C = 3.1| Mar low C = 4.2| Apr low C = 7.6| May low C = 12.1| Jun low C = 16.5| Jul low C = 19.4| Aug low C = 20.1| Sep low C = 16.8| Oct low C = 12.9| Nov low C = 8.9| Dec low C = 5.5|year low C = 10.8| Jan record low C = -13.9| Feb record low C = -16.1| Mar record low C = -11.1| Apr record low C = -2.0| May record low C = 1.4| Jun record low C = 7.1| Jul record low C = 10.5| Aug record low C = 10.2| Sep record low C = 6.0| Oct record low C = 0.6| Nov record low C = -7.2| Dec record low C = -11.5|year record low C = -16.1| Jan precipitation mm = 106.0| Feb precipitation mm = 77.7| Mar precipitation mm = 71.4| Apr precipitation mm = 45.9| May precipitation mm = 34.4| Jun precipitation mm = 36.0| Jul precipitation mm = 33.3| Aug precipitation mm = 39.9| Sep precipitation mm = 61.7| Oct precipitation mm = 88.0| Nov precipitation mm = 100.9| Dec precipitation mm = 122.2|year precipitation mm = 817.4| Jan precipitation days = 17.3| Feb precipitation days = 15.2| Mar precipitation days = 13.8| Apr precipitation days = 10.3| May precipitation days = 8.0| Jun precipitation days = 6.2| Jul precipitation days = 4.3| Aug precipitation days = 5.0| Sep precipitation days = 7.6| Oct precipitation days = 11.2| Nov precipitation days = 13.0| Dec precipitation days = 17.1|year precipitation days = 129.0| unit precipitation days = 0.1 mm|Jan sun = 89.9|Feb sun = 101.7|Mar sun = 142.6|Apr sun = 195.0|May sun = 272.8|Jun sun = 318.0|Jul sun = 356.5|Aug sun = 328.6|Sep sun = 246.0|Oct sun = 176.7|Nov sun = 120.0|Dec sun = 83.7|year sun =|Jand sun = 2.9|Febd sun = 3.6|Mard sun = 4.6|Aprd sun = 6.5|Mayd sun = 8.8|Jund sun = 10.6|Juld sun = 11.5|Augd sun = 10.6|Sepd sun = 8.2|Octd sun = 5.7|Novd sun = 4.0|Decd sun = 2.7| Jan uv =2| Feb uv =2| Mar uv =4| Apr uv =5| May uv =7| Jun uv =8| Jul uv =9| Aug uv =8| Sep uv =6| Oct uv =4| Nov uv =2| Dec uv =1| source 1 = Turkish State Meteorological ServiceWEB,weblinkweblink archive-date=22 April 2018, Resmi Ä°statistikler (Ä°l ve Ä°lçelerimize Ait Ä°statistiki Veriler), Official Statistics (Statistical Data of Provinces and Districts) – Istanbul, Turkish State Meteorological Service, Turkish, 22 April 2018, and Weather Atlas}}{{Weather box| location = Istanbul (Kireçburnu, Sarıyer), 1949–1999| metric first = yes| collapsed=yes| single line = yes| Jan high C = 8.3| Feb high C = 8.7| Mar high C = 10.3| Apr high C = 15.2| May high C = 19.6| Jun high C = 24.2| Jul high C = 26.0| Aug high C = 26.1| Sep high C = 23.3| Oct high C = 19.0| Nov high C = 14.8| Dec high C = 10.9| Jan mean C= 5.5| Feb mean C= 5.5| Mar mean C= 6.7| Apr mean C= 10.9| May mean C= 15.4| Jun mean C= 20.1| Jul mean C= 22.4| Aug mean C= 22.6| Sep mean C= 19.5| Oct mean C= 15.5| Nov mean C= 11.6| Dec mean C= 8.1| Jan low C = 3.0| Feb low C = 2.9| Mar low C = 4.0| Apr low C = 7.5| May low C = 11.9| Jun low C = 16.2| Jul low C = 19.1| Aug low C = 19.7| Sep low C = 16.6| Oct low C = 12.8| Nov low C = 8.9| Dec low C = 5.6| Jan precipitation mm = 103.6| Feb precipitation mm = 70.5| Mar precipitation mm = 71.0| Apr precipitation mm = 47.2| May precipitation mm = 45.8| Jun precipitation mm = 36.8| Jul precipitation mm = 35.6| Aug precipitation mm = 38.6| Sep precipitation mm = 51.9| Oct precipitation mm = 81.3| Nov precipitation mm = 100.8| Dec precipitation mm = 122.0| Jan snow days = 3.6| Feb snow days = 4.9| Mar snow days = 2.8| Apr snow days = 0.0| May snow days = 0.0| Jun snow days = 0.0| Jul snow days = 0.0| Aug snow days = 0.0| Sep snow days = 0.0| Oct snow days = 0.0| Nov snow days = 0.3| Dec snow days = 1.5| unit snow days = 0.1 mmTurkish State Meteorological ServiceHTTP://WWW.IBB.GOV.TR/TR-TR/BILGIHIZMETLERI/ISTATISTIKLER/DOCUMENTS/FIZIKI/T478.PDF, The Yearly Measurements by Kirecburnu Station Between 1990–1999, (1949–1999)}}{{Weather box| location = Istanbul (Bahçeköy, Sarıyer), 1949–1999| metric first = yes| collapsed=yes| single line = yes| Jan high C = 8.0| Feb high C = 8.6| Mar high C = 10.5| Apr high C = 15.9| May high C = 20.6| Jun high C = 24.7| Jul high C = 26.3| Aug high C = 26.6| Sep high C = 23.7| Oct high C = 19.2| Nov high C = 14.7| Dec high C = 10.4| Jan mean C= 4.6| Feb mean C= 4.7| Mar mean C= 6.0| Apr mean C= 10.5| May mean C= 15.0| Jun mean C= 19.3| Jul mean C= 21.5| Aug mean C= 21.6| Sep mean C= 18.2| Oct mean C= 14.1| Nov mean C= 12.2| Dec mean C= 6.8| Jan low C = 1.7| Feb low C = 1.6| Mar low C = 2.8| Apr low C = 6.4| May low C = 10.7| Jun low C = 14.5| Jul low C = 17.0| Aug low C = 17.6| Sep low C = 14.2| Oct low C = 10.8| Nov low C = 6.9| Dec low C = 3.9| Jan precipitation mm = 152.1| Feb precipitation mm = 100.1| Mar precipitation mm = 105.2| Apr precipitation mm = 57.2| May precipitation mm = 45.8| Jun precipitation mm = 40.5| Jul precipitation mm = 37.4| Aug precipitation mm = 54.1| Sep precipitation mm = 67.3| Oct precipitation mm = 118.2| Nov precipitation mm = 135.1| Dec precipitation mm = 175.4| Jan snow days = 4.6| Feb snow days = 5.2| Mar snow days = 3.9| Apr snow days = 0.1| May snow days = 0.0| Jun snow days = 0.0| Jul snow days = 0.0| Aug snow days = 0.0| Sep snow days = 0.0| Oct snow days = 0.0| Nov snow days = 0.5| Dec snow days = 3.0| unit snow days = 0.1 mmTurkish State Meteorological ServiceHTTP://WWW.IBB.GOV.TR/TR-TR/BILGIHIZMETLERI/ISTATISTIKLER/DOCUMENTS/FIZIKI/T474.PDF, The Yearly Measurements by Bahcekoy Station Between 1990–1999, (1949–1999)}}{|style="width:100%;text-align:center;line-height:1.2em;margin-left:auto;margin-right:auto" class="wikitable mw-collapsible"!Colspan=14|Climate data for Istanbul!Month!Jan!Feb!Mar!Apr!May!Jun!Jul!Aug!Sep!Oct!Nov!Dec!style="border-left-width:medium"|Year!Average sea temperature °C (°F)8.4(47.1)7.7(45.9)8.3(46.9)10.2(50.4)15.5(59.9)21.3(70.3)24.6(76.3)24.9(76.8)22.8(73.0)18.4(65.1)13.8(56.8)10.5(50.9)15.5(60.0)!Mean daily daylight hours10.!Colspan=14 style="background:#f8f9fa;font-weight:normal;font-size:95%;"|Source: Weather Atlas WEB,weblink Istanbul, Turkey – Climate data, Weather Atlas, 29 March 2017,

Climate change

Global warming in Turkey may cause more urban heatwaves,NEWS, Turkey reeling from African heat wave,weblink Daily Sabah, 2 July 2017, droughts,NEWS, Gov't forced to take measures amid below average rainfall across Turkey,weblink Hürriyet Daily News, 21 January 2018, storms,NEWS, Lightning electrifies Istanbul, northwestern Turkey skies as thunderstorms take over,weblink Daily Sabah, 24 July 2018, and flooding.NEWS, Istanbul flood result of Turkey's climate change,weblink Anadolu Agency, 27 July 2017, WEB, Şen, Ömer Lütfi, Climate Change in Turkey,weblink Mercator–IPC Fellowship Program=, 27 September 2018, Sea level rise is forecast to affect city infrastructure, for example Kadıkoy metro station is threatened with flooding.NEWS, Temperature to increase significantly in Turkey in 30 years due to global warming, warns climate expert,weblink Hürriyet Daily News, 19 March 2018, Xeriscaping of green spaces has been suggested,JOURNAL, Çetin, Nefise, Mansuroğlu, Sibel, Kalaycı Önaç, Ayşe, Xeriscaping Feasibility as an Urban Adaptation Method for Global Warming: A Case Study from Turkey, Pol. J. Environ. Stud., 27, 3, 1009–18, 10.15244/pjoes/76678, 2018, and Istanbul has a climate-change action plan.WEB, İstanbul İklim Değişikliği Eylem Planı,weblink 22 April 2019,


{{see also|Historic Areas of Istanbul|List of urban centers in Istanbul}}File:Topkapı - 01.jpg|thumb|right|A view of Topkapı Palace from across the Golden Horn, with the Prince IslandsPrince IslandsThe Fatih district, which was named after Sultan Mehmed the Conqueror (Turkish: Fatih Sultan Mehmed), corresponds to what was, until the Ottoman conquest in 1453, the whole of the city of Constantinople (today is the capital district and called the historic peninsula of Istanbul) on the southern shore of the Golden Horn, across the medieval Genoese citadel of Galata on the northern shore. The Genoese fortifications in Galata were largely demolished in the 19th century, leaving only the Galata Tower, to make way for the northward expansion of the city.{{harvnb|Çelik|1993|pp=70, 169}} Galata (Karaköy) is today a quarter within the Beyoğlu (Pera) district, which forms Istanbul's commercial and entertainment center and includes İstiklal Avenue and Taksim Square.{{harvnb|Çelik|1993|p=127}}Dolmabahçe Palace, the seat of government during the late Ottoman period, is in the Beşiktaş district on the European shore of the Bosphorus strait, to the north of Beyoğlu. The Sublime Porte (Bâb-ı Âli), which became a metonym for the Ottoman government, was originally used to describe the Imperial Gate (Bâb-ı Hümâyûn) at the outermost courtyard of the Topkapı Palace; but after the 18th century, the Sublime Porte (or simply Porte) began to refer to the gate of the Sadrazamlık (Prime Ministry) compound in the Cağaloğlu quarter near Topkapı Palace, where the offices of the Sadrazam (Grand Vizier) and other Viziers were, and where foreign diplomats were received. The former village of Ortaköy is within Beşiktaş and gives its name to the Ortaköy Mosque on the Bosphorus, near the Bosphorus Bridge. Lining both the European and Asian shores of the Bosphorus are the historic yalıs, luxurious chalet mansions built by Ottoman aristocrats and elites as summer homes.NEWS,weblink Moonan, Wendy, The New York Times, For Turks, Art to Mark 700th Year, 29 October 1999, 4 July 2012, Farther inland, outside the city's inner ring road, are Levent and Maslak, Istanbul's main business districts.{{harvnb|Oxford Business Group|2009|p=105}}File:Yağlıkçı Hacı Reşit Bey and Prenses Rukiye Yalısı on the Bosphorus, Istanbul, Turkey 001.jpg|thumb|left|Originally outside the city, yalı residences along the alt=Two- and three-story colored houses with docks and balconies, built directly on the edge of the waterFile:Karaköy.jpg|thumb|The Karaköy skyline viewed at night, with the illuminated Galata TowerGalata TowerDuring the Ottoman period, Üsküdar (then Scutari) and Kadıköy were outside the scope of the urban area, serving as tranquil outposts with seaside yalıs and gardens. But in the second half of the 20th century, the Asian side experienced major urban growth; the late development of this part of the city led to better infrastructure and tidier urban planning when compared with most other residential areas in the city. Much of the Asian side of the Bosphorus functions as a suburb of the economic and commercial centers in European Istanbul, accounting for a third of the city's population but only a quarter of its employment. As a result of Istanbul's exponential growth in the 20th century, a significant portion of the city is composed of gecekondus (literally "built overnight"), referring to illegally constructed squatter buildings.{{harvnb|Karpat|1976|pp=78–96}} At present, some gecekondu areas are being gradually demolished and replaced by modern mass-housing compounds.NEWS, Yavuz, Ercan,weblink Today's Zaman, Gov't launches plan to fight illegal construction, 8 June 2009, 20 December 2011, dead,weblink" title="">weblink 20 January 2012, Moreover, large scale gentrification and urban renewal projects have been taking place,BOOK, Rowland Atkinson, Gary Bridge, Gentrification in a Global Context: The New Urban Colonialism, {{Google books, s_Z8dxsXWxQC, PA123, yes, |accessdate=6 May 2013|year=2005|publisher=Routledge|isbn=978-0-415-32951-4|pages=123–}} such as the one in Tarlabaşı;NEWS, Poor but Proud Istanbul Neighborhood Faces Gentrification, Jessica Bourque,weblink The New York Times, 4 July 2012, 6 May 2013, some of these projects, like the one in Sulukule, have faced criticism.NEWS, Forced gentrification plan spells end for old Roma district in Istanbul, Robert Tait,weblink The Guardian, 22 July 2008, 6 May 2013, The Turkish government also has ambitious plans for an expansion of the city west and northwards on the European side in conjunction with plans for a third airport; the new parts of the city will include four different settlements with specified urban functions, housing 1.5 million people.NEWS, New city construction to begin in six months,weblink Hurriyet Daily News, 22 February 2013, 6 May 2013, Istanbul does not have a primary urban park, but it has several green areas. Gülhane Park and Yıldız Park were originally included within the grounds of two of Istanbul's palaces—Topkapı Palace and Yıldız Palace—but they were repurposed as public parks in the early decades of the Turkish Republic.{{harvnb|Boyar|Fleet|2010|p=247}} Another park, Fethi Paşa Korusu, is on a hillside adjacent to the Bosphorus Bridge in Anatolia, opposite Yıldız Palace in Europe. Along the European side, and close to the Fatih Sultan Mehmet Bridge, is Emirgan Park, which was known as the Kyparades (Cypress Forest) during the Byzantine period. In the Ottoman period, it was first granted to Nişancı Feridun Ahmed Bey in the 16th century, before being granted by Sultan Murad IV to the Safavid Emir Gûne Han in the 17th century, hence the name Emirgan. The {{convert|47|ha|acre|adj=on}} park was later owned by Khedive Ismail Pasha of Ottoman Egypt and Sudan in the 19th century. Emirgan Park is known for its diversity of plants and an annual tulip festival is held there since 2005.{{harvnb|Taylor|2007|p=241}} The AKP government's decision to replace Taksim Gezi Park with a replica of the Ottoman era Taksim Military Barracks (which was transformed into the Taksim Stadium in 1921, before being demolished in 1940 for building Gezi Park) sparked a series of nationwide protests in 2013 covering a wide range of issues. Popular during the summer among Istanbulites is Belgrad Forest, spreading across {{convert|5500|ha|acre|adj=off}} at the northern edge of the city. The forest originally supplied water to the city and remnants of reservoirs used during Byzantine and Ottoman times survive.WEB,weblinkweblink" title="">weblink 19 November 2010, Republic of Turkey Ministry of Culture and Tourism, Water Supply Systems, Reservoirs, Charity and Free Fountains, Turkish Baths, 29 April 2012, {{harvnb|Time Out Guides|2010|p=212}}{{wide image|Istanbul panorama and skyline.jpg|800px|align-cap=center|Panoramic view of Istanbul from the confluence of the Bosphorus and the Sea of Marmara. Several landmarks—including Sultan Ahmed Mosque, the Hagia Sophia, Topkapı Palace, and Dolmabahçe Palace—can be seen along their shores.}}

Edge cities (office and retail districts)

File:Modern Istanbul skyline.jpg|thumb|Levent skyline seen from the BosphorusBosphorus File:Maslak kerembarut.jpg|thumb|MaslakMaslakFile:Ä°stanbul view from Ä°stanbul Sapphire observation deck Aug 2014, p9.JPG|thumb|View of Levent and beyond from Istanbul SapphireIstanbul SapphireModern shopping malls, dense residential and hotel towers, and entertainment, educational and other facilities can be found outside the historic center in the following edge cities:BOOK, Istanbul Office Market Overview Q1 2014, 2014, Property Investment Consultancy,weblink 26 July 2019,


File:Turkey-3019 - Hagia Sophia (2216460729).jpg|thumb|left|Originally a church, later a mosque, and since 1935 a museum, the 6th-century Hagia Sophia (532–537) by Byzantine emperor Justinian the Great was the largest cathedral in the world for nearly a thousand years, until the completion of the Seville Cathedral (1507) in alt=A reddish building topped by a large dome and surrounded by smaller domes and four towers{{Multiple image|align=right|direction=vertical|image1=Dolmabahçe Palace (cropped).JPG|image2=Istanbul - Palau de Çırağan.JPG|image3=Bosfor B17-34.jpg|caption3=Built by sultans Abdülmecid and Abdülaziz, the 19th-century Dolmabahçe, Çırağan and Beylerbeyi palaces on the European and Asian shores of the Bosphorus strait were designed by members of the Armenian Balyan family of Ottoman court architects."Continuity and Change in Nineteenth-Century Istanbul: Sultan Abdulaziz and the Beylerbeyi Palace", Filiz Yenisehirlioglu, Islamic Art in the 19th Century: Tradition, Innovation, And Eclecticism, 65.}}Istanbul is primarily known for its Byzantine and Ottoman architecture, but its buildings reflect the various peoples and empires that have previously ruled the city. Examples of Genoese and Roman architecture remain visible in Istanbul alongside their Ottoman counterparts. Nothing of the architecture of the classical Greek period has survived, but Roman architecture has proved to be more durable. The obelisk erected by Theodosius in the Hippodrome of Constantinople is still visible in Sultanahmet Square, and a section of the Valens Aqueduct, constructed in the late 4th century, stands relatively intact at the western edge of the Fatih district.{{harvnb|Chamber of Architects of Turkey|2006|pp=80, 118}} The Column of Constantine, erected in 330 CE to mark the new Roman capital, stands not far from the Hippodrome.File:Sultan Ahmed Mosque Istanbul Turkey retouched.jpg|thumb|left|Completed in 1616, the Sultan Ahmed Mosque is popularly known as the Blue Mosque due to the blue İznik tilesİznik tilesEarly Byzantine architecture followed the classical Roman model of domes and arches, but improved upon these elements, as in the Church of the Saints Sergius and Bacchus. The oldest surviving Byzantine church in Istanbul—albeit in ruins—is the Monastery of Stoudios (later converted into the Imrahor Mosque), which was built in 454.{{harvnb|Chamber of Architects of Turkey|2006|p=176}} After the recapture of Constantinople in 1261, the Byzantines enlarged two of the most important churches extant, Chora Church and Pammakaristos Church. The pinnacle of Byzantine architecture, and one of Istanbul's most iconic structures, is the Hagia Sophia. Topped by a dome {{convert|31|m|ft|sp=us}} in diameter,{{harvnb|Gregory|2010|p=138}} the Hagia Sophia stood as the world's largest cathedral for centuries, and was later converted into a mosque and, as it stands now, a museum.Among the oldest surviving examples of Ottoman architecture in Istanbul are the Anadoluhisarı and Rumelihisarı fortresses, which assisted the Ottomans during their siege of the city.{{harvnb|Freely|2000|p=283}} Over the next four centuries, the Ottomans made an indelible impression on the skyline of Istanbul, building towering mosques and ornate palaces. The largest palace, Topkapı, includes a diverse array of architectural styles, from Baroque inside the Harem, to its Neoclassical style Enderûn Library.{{harvnb|Necipoğlu|1991|pp=180, 136–37}} The imperial mosques include Fatih Mosque, Bayezid Mosque, Yavuz Selim Mosque, Süleymaniye Mosque, Sultan Ahmed Mosque (the Blue Mosque), and Yeni Mosque, all of which were built at the peak of the Ottoman Empire, in the 16th and 17th centuries. In the following centuries, and especially after the Tanzimat reforms, Ottoman architecture was supplanted by European styles.{{harvnb|Çelik|1993|p=159}} An example of which is the imperial Nuruosmaniye Mosque. Areas around İstiklal Avenue were filled with grand European embassies and rows of buildings in Neoclassical, Renaissance Revival and Art Nouveau styles, which went on to influence the architecture of a variety of structures in Beyoğlu—including churches, stores, and theaters—and official buildings such as Dolmabahçe Palace.{{harvnb|Çelik|1993|pp=133–34, 141}}


(File:Istanbul location districts.svg|right|thumb|upright=1.55|Istanbul's districts extend far from the city center, along the full length of the Bosphorus (with the Black Sea at the top and the Sea of Marmara at the bottom of the map).|alt=A map depicting districts, squeezed between two bodies of water; farther districts are very large compared to those clustered in the center.)Since 2004, the municipal boundaries of Istanbul have been coincident with the boundaries of its province.WEB, Büyükşehir Belediyesi Kanunu, Metropolitan Municipal Law,weblink 30 November 2010, Bu Kanunun yürürlüğe girdiği tarihte; büyükşehir belediye sınırları, İstanbul ve Kocaeli ilinde, il mülkî sınırıdır. (On the date this law goes in effect, the metropolitan city boundaries, in the provinces of İstanbul and Kocaeli, are those of the province.), Türkiye Büyük Millet Meclisi, 10 July 2004, Turkish, The city, considered capital of Istanbul Province, is administered by the Istanbul Metropolitan Municipality (MMI), which oversees the 39 districts of the city-province.{{efn|name=city-area}}The current city structure can be traced back to the Tanzimat period of reform in the 19th century, before which Islamic judges and imams led the city under the auspices of the Grand Vizier. Following the model of French cities, this religious system was replaced by a mayor and a citywide council composed of representatives of the confessional groups (millet) across the city. Pera (now Beyoğlu) was the first area of the city to have its own director and council, with members instead being longtime residents of the neighborhood.{{harvnb|Gül|2012|pp=43–49}} Laws enacted after the Ottoman constitution of 1876 aimed to expand this structure across the city, imitating the twenty arrondissements of Paris, but they were not fully implemented until 1908, when the city was declared a province with nine constituent districts.{{harvnb|Çelik|1993|pp=42–48}}{{harvnb|Kapucu|Palabiyik|2008|p=145}} This system continued beyond the founding of the Turkish Republic, with the province renamed a belediye (municipality), but the municipality was disbanded in 1957.{{harvnb|Taşan-Kok|2004|p=87}}File:Adalar 5536.jpg|thumb|left|Statue of Atatürk in Büyükada, the largest of the Prince Islands to the southeast of Istanbul, which collectively form the Adalar (Isles) district of Istanbul ProvinceIstanbul ProvinceSmall settlements adjacent to major population centers in Turkey, including Istanbul, were merged into their respective primary cities during the early 1980s, resulting in metropolitan municipalities.{{harvnb|Wynn|1984|p=188}}{{harvnb|Taşan-Kok|2004|pp=87–88}} The main decision-making body of the Istanbul Metropolitan Municipality is the Municipal Council, with members drawn from district councils.The Municipal Council is responsible for citywide issues, including managing the budget, maintaining civic infrastructure, and overseeing museums and major cultural centers.{{harvnb|Kapucu|Palabiyik|2008|pp=153–55}} Since the government operates under a "powerful mayor, weak council" approach, the council's leader—the metropolitan mayor—has the authority to make swift decisions, often at the expense of transparency.JOURNAL, Erder, Sema, Local Governance in Istanbul, November 2009, Urban Age, Istanbul: City of Intersections, London, 46,weblink 16 July 2012, harv, The Municipal Council is advised by the Metropolitan Executive Committee, although the Committee also has limited power to make decisions of its own.{{harvnb|Kapucu|Palabiyik|2008|p=156}} All representatives on the Committee are appointed by the metropolitan mayor and the Council, with the mayor—or someone of his or her choosing—serving as head.WEB,weblink Istanbul Metropolitan Municipality, Metropolitan Executive Committee, 21 December 2011, dead,weblink" title="">weblink 2 January 2012, File:Taksim Square 2012.jpg|thumb|A view of Taksim Square with the Republic Monument (1928) designed by Italian sculptor Pietro CanonicaPietro CanonicaDistrict councils are chiefly responsible for waste management and construction projects within their respective districts. They each maintain their own budgets, although the metropolitan mayor reserves the right to review district decisions. One-fifth of all district council members, including the district mayors, also represent their districts in the Municipal Council. All members of the district councils and the Municipal Council, including the metropolitan mayor, are elected to five-year terms.{{harvnb|Kapucu|Palabiyik|2008|pp=155–56}} Representing the Republican People's Party, Ekrem İmamoğlu has been the Mayor of Istanbul since 23 June 2019.WEB,weblink The Mayor, Istanbul Metropolitan Municipality, 12 July 2018, With the Istanbul Metropolitan Municipality and Istanbul Province having equivalent jurisdictions, few responsibilities remain for the provincial government. Similar to the MMI, the Istanbul Special Provincial Administration has a governor, a democratically elected decision-making body—the Provincial Parliament—and an appointed Executive Committee. Mirroring the executive committee at the municipal level, the Provincial Executive Committee includes a secretary-general and leaders of departments that advise the Provincial Parliament.WEB,weblink Istanbul Special Provincial Administration, Organizasyon, Organization, 21 December 2011, Turkish, dead,weblink" title="">weblink 26 November 2011, The Provincial Administration's duties are largely limited to the building and maintenance of schools, residences, government buildings, and roads, and the promotion of arts, culture, and nature conservation.{{harvnb|Organisation for Economic Co-operation and Development|2008|p=206}} Vasip Şahin has been the Governor of Istanbul Province since 25 September 2014.WEB,weblink Governor of Istanbul, Governorship of Istanbul, 12 July 2018,weblink" title="">weblink 12 July 2018, dead,


{{see also|Demographics of Turkey}}File:Istanbul 1930s.jpg|thumb|left|People at the commuter ferry quay of KaraköyKaraköy{| class="toccolours" style="clear: right; float: right; border-spacing: 0; margin-left: 1em;"110%|Historical populations}}{{Historical populations| title = Pre-Republic subbox = yes| percentages = off 36,000 300,000 400,000c. 150–350,000c. 125–500,000c. 50–250,000 150–300,000 200,000 150,000Latin Empire#Decline and fall>1261| 100,000 80,000Fall of Constantinople>1453| 45,000 200,000 660,000 700,000 500,000 715,000 874,000 942,900}}{{Historical populations| title = Republic| percentages = pagr| subbox = yes 881,000 691,000 740,800 793,900 845,300 983,000 1,459,500 1,743,000 2,132,400 2,547,400 2,853,500 5,494,900 6,620,200 7,615,500 8,260,400 8,831,800 11,174,200 14,657,434}} Sources: Jan Lahmeyer 2004,{{harvnb1987}}, {{harvnb2010}},{{harvnb2010}} Pre-Republic figures estimated{{efnHistorians disagree—sometimes substantially—on population figures of Istanbul (Constantinople), and other world cities, prior to the 20th century. A follow-up to Chandler & Fox 1974,{{harvnb1987MorrisTuranDATE=28 JANUARY 2011ACCESSDATE=24 DECEMBER 2011Turkish Statistical Institute. The drastic increase in population between 1980 and 1985 is largely due to an enlargement of the city's limits (see the #Administration>Administration section). Explanations for population changes in pre-Republic times can be inferred from the History section.}}(File:IstanbulGrowth1975and2011.png|thumb|left|Two maps comparing the size of urban areas in Istanbul (indicated as the grey zones) in 1975 and 2011)Throughout most of its history, Istanbul has ranked among the largest cities in the world. By 500 CE, Constantinople had somewhere between 400,000 and 500,000 people, edging out its predecessor, Rome, for world's largest city.{{harvnb|Morris|2010|p=113}} Constantinople jostled with other major historical cities, such as Baghdad, Chang'an, Kaifeng and Merv for the position of world's most populous city until the 12th century. It never returned to being the world's largest, but remained Europe's largest city from 1500 to 1750, when it was surpassed by London.{{harvnb|Chandler|1987|pp=463–505}}The Turkish Statistical Institute estimates that the population of Istanbul Metropolitan Municipality was 14,377,019 at the end of 2014, hosting {{nowrap|19 percent}} of the country's population. Then about 97–98% of the inhabitants of the metropolitan municipality were within city limits, up from 89% in 2007WEB, 2007 statistics,weblinkweblink" title="">weblink dead, 1 January 2014, tuik, and 61% in 1980.WEB, 1980 Statistics,weblinkweblink dead, 3 November 2012, tuik, 64.9% of the residents live on the European side and 35.1% on the Asian side.WEB,weblink Istanbul Asian and European population details, 2013, 16 June 2015, tr,weblink" title="">weblink 2 February 2009, "İstanbul'da 8 milyon 156 bin 696 kişi Avrupa, 4 milyon 416 bin 867 vatandaş da Asya yakasında bulunuyor (In Istanbul there are 8,156,696 people in Europe, 4,416,867 citizens in Asia)", While the city ranks as the world's 5th-largest city proper, it drops to the 24th place as an urban area and to the 18th place as a metro area because the city limits are roughly equivalent to the agglomeration. Today, it forms one of the largest urban agglomerations in Europe, alongside Moscow.{{efn|name=un-agg|The United Nations defines an urban agglomeration as "the population contained within the contours of a contiguous territory inhabited at urban density levels without regard to administrative boundaries". The agglomeration "usually incorporates the population in a city or town plus that in the suburban areas lying outside of, but being adjacent to, the city boundaries".WEB,weblinkweblink" title="">weblink 7 September 2012, The United Nations, World Urbanization Prospects, the 2011 Revision, Frequently Asked Questions, 5 April 2012, 20 September 2012, WEB,weblink The United Nations, World Urbanization Prospects, the 2018 Revision, File 11a: The 30 Largest Urban Agglomerations Ranked by Population Size at Each Point in Time, 1950–2035, xls, 5 April 2012, 21 August 2018, }} The city's annual population growth of {{nowrap|3.45 percent}} ranks as the highest among the seventy-eight largest metropolises in the Organisation for Economic Co-operation and Development. The high population growth mirrors an urbanization trend across the country, as the second and third fastest-growing OECD metropolises are the Turkish cities of İzmir and Ankara.File:Istiklal busy afternoon.JPG|thumb|right|İstiklal Avenueİstiklal AvenueIstanbul experienced especially rapid growth during the second half of the 20th century, with its population increasing tenfold between 1950 and 2000. This growth in population comes, in part, from an expansion of city limits—particularly between 1980 and 1985, when the number of Istanbulites nearly doubled. The remarkable growth was, and still is, largely fueled by migrants from eastern Turkey seeking employment and improved living conditions. The number of residents of Istanbul originating from seven northern and eastern provinces is greater than the populations of their entire respective provinces; Sivas and Kastamonu each account for more than half a million residents of Istanbul. Istanbul's foreign population, by comparison, is very small, 42,228 residents in 2007.WEB,weblink Today's Zaman, Kamp, Kristina, 17 February 2010, 27 March 2012, Starting Up in Turkey: Expats Getting Organized, dead,weblink" title="">weblink 9 May 2013, Only {{nowrap|28 percent}} of the city's residents are originally from Istanbul.WEB,weblink KONDA Research, Social Structure Survey 2006, 2006, 27 March 2012, (Note: Accessing KONDA reports directly from KONDA's own website requires registration.) The most densely populated areas tend to lie to the northwest, west, and southwest of the city center, on the European side; the most densely populated district on the Asian side is Üsküdar.

Religious and ethnic groups

{{see also|Assyrians in Turkey|Kurds in Turkey|Bosniaks in Turkey|Greeks in Turkey|Armenians in Turkey|Jews in Turkey|Albanians in Turkey}}File:Greeks in Istanbul 1844 1997.png|thumb|upright=1.35|Greek population in Istanbul and percentages of the city population (1844–1997). The 1923 population exchange between Greece and Turkey, the 1942 wealth tax, and the Istanbul pogromIstanbul pogromIstanbul has been a cosmopolitan city throughout much of its history, but it has become more homogenized since the end of the Ottoman Empire. The vast majority of people across Turkey, and in Istanbul, are Muslim, and more specifically members of the Sunni branch of Islam. Most Sunni Turks follow the Hanafi school of Islamic thought, while Sunni Kurds tend to follow the Shafi'i school. The largest non-Sunni Muslim group, accounting 10–20% of Turkey's populationBOOK, Turkey's Kurdish Question, Barkey, Henri J., Rowman & Littlefield Publishers, 2000, 9780585177731, 67, , are the Alevis; a third of all Alevis in the country live in Istanbul. Mystic movements, like Sufism, were officially banned after the establishment of the Turkish Republic, but they still boast numerous followers.WEB, U.S. Bureau of Democracy, Human Rights, and Labor,weblink U.S. Department of State, Turkey: International Religious Freedom Report 2007, 27 March 2012, Istanbul is a migrant city. Since the 1950s, Istanbul's population has increased from 1 million to about 10 million residents. Almost 200,000 new immigrants, many of them from Turkey's own villages, continue to arrive each year. As a result, the city constant change, constantly reshaped to achieve the needs of these new population.JOURNAL, Moceri, Toni, November 2008, Sarigazi, Istanbul: Monuments of the Everyday, Space and Culture, 11, 4, 455–458, 10.1177/1206331208314785, 1206-3312, The Patriarch of Constantinople has been designated Ecumenical Patriarch since the sixth century, and has come to be regarded as the leader of the world's {{nowrap|300 million}} Orthodox Christians.WEB,weblinkweblink" title="">weblink 8 June 2012, The Ecumenical Patriarch of Constantinople, History of the Ecumenical Patriarch, 20 June 2012, Since 1601, the Patriarchate has been based in Istanbul's Church of St. George.WEB,weblinkweblink" title="">weblink 31 May 2012, The Ecumenical Patriarch of Constantinople, The Patriarchal Church of Saint George, 20 June 2012, Into the 19th century, the Christians of Istanbul tended to be either Greek Orthodox, members of the Armenian Apostolic Church or Catholic Levantines.{{harvnb|Çelik|1993|p=38}} Because of events during the 20th century—including the 1923 population exchange between Greece and Turkey, a 1942 wealth tax, and the 1955 Istanbul riots—the Greek population, originally centered in Fener and Samatya, has decreased substantially. At the start of the 21st century, Istanbul's Greek population numbered 3,000 (down from 260,000 out of 850,000 according to the Ottoman Census of 1910, and a peak of 350,000 in 1919).{{harvnb|Athanasopulos|2001|p=82}}WEB,weblink Hellenic Republic Ministry of Foreign Affairs, The Greek Minority and its foundations in Istanbul, Gokceada (Imvros) and Bozcaada (Tenedos), 21 March 2011, 21 June 2012, dead,weblink" title="">weblink 26 July 2012, There are today between 50,000 and {{nowrap|90,000}} Armenians in Istanbul, down from about 164,000 according to the Ottoman Census of 1913 (partly due to the Armenian Genocide).WEB, Istanbul Population 2015,weblink World Population Review, 7 July 2015, The Levantines, Latin Christians who settled in Galata during the Ottoman period, played a seminal role in shaping the culture and architecture of Istanbul during the 19th and early 20th centuries; their population has dwindled, but they remain in the city in small numbers.{{harvnb|Schmitt|2005|loc=passim}}File:St. Anthony of Padua Church in Istanbul 06.JPG|thumb|left|The Church of St. Anthony of Padua on İstiklal Avenue in BeyoğluBeyoğluFile:İstanbul - Kamondo Merdivenleri - Mart 2013.JPG|thumb|Camondo Steps at Bankalar Caddesi (Banks Street) in Galata, constructed by Ottoman-Venetian Jewish banker Abraham Salomon CamondoAbraham Salomon CamondoThe largest ethnic minority in Istanbul is the Kurdish community, originating from eastern and southeastern Turkey. Although the Kurdish presence in the city dates back to the early Ottoman period,{{harvnb|Masters|Ágoston|2009|pp=520–21}} the influx of Kurds into the city has accelerated since the beginning of the Kurdish–Turkish conflict with the PKK (i.e. since the late 1970s).{{harvnb|Wedel|2000|p=182}} About two to four million residents of Istanbul are Kurdish, meaning there are more Kurds in Istanbul than in any other city in the world.BOOK, Bahar Baser, Mari Toivanen, Begum Zorlu, Yasin Duman, Methodological Approaches in Kurdish Studies: Theoretical and Practical Insights from the Field,weblink 6 November 2018, Lexington Books, 978-1-4985-7522-5, 87, BOOK, Amikam Nachmani, Turkey: Facing a New Millenniium : Coping With Intertwined Conflicts, {{Google books, Xxp61eBvGzMC, PA90, yes, |accessdate=5 May 2013|year=2003|publisher=Manchester University Press|isbn=978-0-7190-6370-1|pages=90–}}WEB,weblink Biz Kimiz: Toplumsal Yapı Araştırması, Milliyet Konda Araştırma, 2006, 4 May 2013, WEB,weblink Kürtler ve Kürt Sorunu, Agirdir, Bekir, 2008, KONDA, 4 May 2013, NEWS, Kürtlerin nüfusu 11 milyonda İstanbul"da 2 milyon Kürt yaşıyor, Bekir Agirdir,weblink 4 May 2013, BOOK, Christiane Bird, A Thousand Sighs, A Thousand Revolts: Journeys in Kurdistan, {{Google books, DYwFG3e9KIcC, PA308, yes, |accessdate=4 May 2013|date=18 December 2007|publisher=Random House Publishing Group|isbn=978-0-307-43050-2|pages=308–}} There are other significant ethnic minorities as well, the Bosniaks are the main people of an entire district – Bayrampaşa.NEWS, Turkey's Bosniak communities uphold their heritage, traditions, 5 June 2011, Elma Gabela, Today's Zaman,weblink 20 September 2011, dead,weblink" title="">weblink 23 August 2011, The neighborhood of Balat used to be home to a sizable Sephardi Jewish community, first formed after their expulsion from Spain in 1492.{{harvnb|Rôzen|2002|pp=55–58, 49}} Romaniotes and Ashkenazi Jews resided in Istanbul even before the Sephardim, but their proportion has since dwindled; today, {{nowrap|1 percent}} of Istanbul's Jews are Ashkenazi.{{harvnb|Rôzen|2002|pp=49–50}}{{harvnb|Brink-Danan|2011|p=176}} In large part due to emigration to Israel, the Jewish population nationwide dropped from 100,000 in 1950 to 18,000 in 2005, with the majority of them living in either Istanbul or İzmir.{{harvnb|ʻAner|2005|p=367}} From the increase in mutual cooperation between Turkey and several African States like Somalia and Djibouti, several young students and workers have been migrating to Istanbul in search of better education and employment opportunities. There are Nigerian, Congolese and Cameroonian communities present.WEB, Going cold Turkey: African migrants in Istanbul see hopes turn sour,weblink IRIN, 23 February 2016, According to a recent 2019 estimate by KONDA Research and Consultancy, 78% of the Istanbulite population is Turkish, 18% is Kurdish or Zaza, 1% is Arab and 3% belongs to other ethnic groups, notably Bosniaks, Greeks, Jews and Armenians.WEB,weblink Konda {{!, Ballot Box Analysis of The 23 June Istanbul Election and Voter Profiles||access-date=2019-10-19}}


File:Ekrem Imamoglu 24 12 2018 (cropped).png|thumb|Ekrem Ä°mamoÄŸlu, the 32nd and current Mayor of Istanbul, who was elected in 2019elected in 2019

|colorcode = #000099Justice and Development Party (Turkey)>AK Party{{smallPeople's Alliance (Turkey)>People's Alliance)}}24hex=#fdc400}}Republican People's Party (Turkey)>CHP{{smallNation Alliance (Turkey)>Nation Alliance)}}14hex=#cc0000}}Nationalist Movement Party>MHP{{smallPeople's Alliance (Turkey)>People's Alliance)}}1hex=#870000}}}}

|colorcode = #000099Justice and Development Party (Turkey)>AK Party{{smallPeople's Alliance (Turkey)>People's Alliance)}}43hex=#fdc400}}Republican People's Party (Turkey)>CHP{{smallNation Alliance (Turkey)>Nation Alliance)}}27hex=#cc0000}}Peoples' Democratic Party (Turkey)>HDP{{small|(No alliance)}}12hex=#91007B}}İYİ Party>İYİ{{smallNation Alliance (Turkey)>Nation Alliance)}}8hex=#44b4e4}}Nationalist Movement Party>MHP{{smallPeople's Alliance (Turkey)>People's Alliance)}}8hex=#870000}}}}Politically, Istanbul is seen as the most important administrative region in Turkey. Many politicians, including the President Recep Tayyip Erdoğan, are of the view that a political party's performance in Istanbul is more significant than its general performance overall. This is due to the city's role as Turkey's financial center, its large electorate and the fact that Erdoğan himself was elected Mayor of Istanbul in 1994. In the run-up to local elections in 2019, Erdoğan claimed 'if we fail in Istanbul, we will fail in Turkey'.WEB,weblink Erdoğan: 'İstanbul'da teklersek, Türkiye'de tökezleriz', 2 April 2019, Tele1, 4 May 2019, Historically, Istanbul has voted for the winning party in general elections since 1995. Since 2002, the right-wing Justice and Development Party (AKP) has won pluralities in every general election, with 41.74% of the vote in the most recent parliamentary election on 24 June 2018. Erdoğan, the AKP's presidential candidate, received exactly 50.0% of the vote in the presidential election held on the same day. Starting with Erdoğan in 1994, Istanbul has had a conservative mayor for 25 years, until 2019. The second largest party in Istanbul is the center-left Republican People's Party (CHP), which is also the country's main opposition. The left-wing pro-Kurdish Peoples' Democratic Party (HDP) is the city's third largest political force due to a substantial number of Kurdish people migrating from south-eastern Turkey.More recently, Istanbul and many of Turkey's metropolitan cities are following a trend away from the government and their right-wing ideology. In 2013 and 2014, large-scale anti-AKP government protests began in İstanbul and spread throughout the nation. This trend first became evident electorally in the 2014 mayoral election where the center-left opposition candidate won an impressive 40% of the vote, despite not winning. The first government defeat in Istanbul occurred in the 2017 constitutional referendum, where Istanbul voted 'No' by 51.4% to 48.6%. The AKP government had supported a 'Yes' vote and won the vote nationally due to high support in rural parts of the country. The biggest defeat for the government came in the 2019 local elections, where their candidate for Mayor, former Prime Minister Binali Yıldırım, was defeated by a very narrow margin by the opposition candidate Ekrem İmamoğlu. İmamoğlu won the vote with 48.77% of the vote, against Yıldırım's 48.61%. Similar trends and electoral successes for the opposition were also replicated in Ankara, Izmir, Antalya, Mersin, Adana and other metropolitan areas of Turkey.File:Istanbul Municipality City Hall.jpg|thumb|left|Istanbul Metropolitan Municipality building in the FatihFatihAdministratively, Istanbul is divided into 39 districts, more than any other province in Turkey. As a province, Istanbul sends 98 Members of Parliament to the Grand National Assembly of Turkey, which has a total of 600 seats. For the purpose of parliamentary elections, Istanbul is divided into three electoral districts; two on the European side and one on the Asian side, electing 28, 35 and 35 MPs respectively.


{{wide image|Maslak bussines center.jpg|750px|align-cap=center|A panorama of Maslak business district on the European side of the city, near Levent}}With a PPP-adjusted gross domestic product of {{nowrap|US$301.1 billion}}, Istanbul ranked 29th among the world's urban areas in 2011.WEB,weblink Global MetroMonitor, Brookings Institution, 30 November 2012, 13 April 2013, dead,weblink" title="">weblink 5 June 2013, Since the mid-1990s, Istanbul's economy has been one of the fastest-growing among OECD metro-regions. Istanbul is responsible for {{nowrap|27 percent}} of Turkey's GDP, with {{nowrap|20 percent}} of the country's industrial labor force residing in the city.WEB,weblink Presentation of Reference City: Istanbul, Urban Green Environment, 2001, 30 December 2011, dead,weblink" title="">weblink 17 January 2012, Its GDP per capita and productivity are greater than their national averages by {{nowrap|70 percent}} and {{nowrap|50 percent}}, respectively, owing in part to the focus on high-value-added activities. With its high population and significant contribution to the Turkish economy, Istanbul is responsible for two-fifths of the nation's tax revenue. That includes the taxes of 37 US-dollar billionaires based in Istanbul, the fifth-highest number among cities around the world.WEB,weblink Geromel, Ricardo, Forbes, Forbes Top 10 Billionaire Cities – Moscow Beats New York Again, 14 March 2013, 27 July 2013, File:İstanbul view from İstanbul Sapphire observation deck Aug 2014, p9.JPG|thumb|right|A view of alt=Skyline of a portion of the city, including several skyscrapers interspersed among low- and mid-rises, several historic buildings, parks and hilly terrain, and the waterway known as BosphorusAs expected for a city of its size, Istanbul has a diverse industrial economy, producing commodities as varied as olive oil, tobacco, vehicles, and electronics. Despite having a focus on high-value-added work, its low-value-added manufacturing sector is substantial, representing just {{nowrap|26 percent}} of Istanbul's GDP, but four-fifths of the city's total exports. In 2005, companies based in Istanbul produced exports worth {{nowrap|$41.4 billion}} and received imports totaling {{nowrap|$69.9 billion}}; these figures were equivalent to {{nowrap|57 percent}} and {{nowrap|60 percent}}, respectively, of the national totals.WEB,weblink NTV-MSNBC, Dış Ticaretin Lokomotifi İstanbul, Istanbul is the Locomotive of Foreign Trade, Turkish, 13 February 2006, 28 March 2012, dead,weblink" title="">weblink 31 May 2013, Istanbul is home to Borsa Istanbul, the sole exchange entity of Turkey, which combined the former Istanbul Stock Exchange, the Istanbul Gold Exchange, and the Derivatives Exchange of Turkey.WEB, Bilgic, Taylan, Istanbul Opens New Bourse as Erdogan Seeks to Build Finance Hub,weblink Bloomberg News, 5 April 2013, 14 April 2013, The former Istanbul Stock Exchange was originally established as the Ottoman Stock Exchange in 1866.JOURNAL, Odabaşı, Attila, Aksu, Celal, Akgiray, Vedat, December 2004, The Statistical Evolution of Prices on the Istanbul Stock Exchange, The European Journal of Finance, 10, 510–25, 10.1080/1351847032000166931, London, harv, 6,weblink, During the 19th and early 20th centuries, Bankalar Caddesi (Banks Street) in Galata was the financial center of the Ottoman Empire, where the Ottoman Stock Exchange was located.WEB,weblink The Ottoman Bank Archives and Research Centre, History of the Bank, 28 March 2012, dead,weblink" title="">weblink 13 April 2012, Bankalar Caddesi continued to be Istanbul's main financial district until the 1990s, when most Turkish banks began moving their headquarters to the modern central business districts of Levent and Maslak. In 1995, the Istanbul Stock Exchange (now Borsa Istanbul) moved to its current building in the İstinye quarter of the Sarıyer district.WEB,weblinkweblink" title="">weblink dead, 25 November 2009, Istanbul Stock Exchange, Milestones in ISE History, 2012, 28 March 2012, A new central business district is also under construction in Ataşehir and will host the headquarters of various Turkish banks and financial institutions upon completion.NEWS, Istanbul Aims to Outshine Dubai With $2.6 Billion Bank Center, Mark Bentley, Benjamin Harvey,weblink Bloomberg Markets Magazine, 17 September 2012, 5 May 2013, File:Ships under Second Bosphorus Bridge (September 2011).jpg|thumb|left|As the only route to the Black Sea, the alt=A pair of large ships sailing on a waterway, with a suspension bridge and hilly terrain in the background.As the only sea route between the oil-rich Black Sea and the Mediterranean, the Bosphorus is one of the busiest waterways in the world; more than {{nowrap|200 million}} tonnes of oil pass through the strait each year, and the traffic on the Bosphorus is three times that on the Suez Canal.{{harvnb|Oxford Business Group|2009|p=112}} As a result, there have been proposals to build a canal, known as Canal Istanbul, parallel to the strait, on the European side of the city.WEB,weblink The Guardian, Istanbul's new Bosphorus canal 'to surpass Suez or Panama', Jones, Sam, and agencies, 27 April 2011, 29 April 2012, Istanbul has three major shipping ports—the Port of Haydarpaşa, the Port of Ambarlı, and the Port of Zeytinburnu—as well as several smaller ports and oil terminals along the Bosphorus and the Sea of Marmara.{{harvnb|Organisation for Economic Co-operation and Development|2008|p=80}}WEB,weblink Cerrahogullari T.A.S., Ports of Turkey, 28 August 2012, dead,weblink" title="">weblink 6 September 2012, Haydarpaşa, at the southeastern end of the Bosphorus, was Istanbul's largest port until the early 2000s. Shifts in operations to Ambarlı since then have left Haydarpaşa running under capacity and with plans to decommission the port.WEB,weblink London School of Economics, Cavusoglu, Omer, Summary on the Haydarpasa Case Study Site, March 2010, Cities Programme, 3 April 2012, In 2007, Ambarlı, on the western edge of the urban center, had an annual capacity of {{nowrap|1.5 million}} TEUs (compared to 354,000 TEUs at Haydarpaşa), making it the fourth-largest cargo terminal in the Mediterranean basin.WEB,weblink What Role for Turkish Ports in the Regional Logistics Supply Chains?, Zeybek, Hülya, Kaynak, Muhtesem, 27–30 May 2008, International Conference on Information Systems and Supply Chain, 28 August 2012,weblink" title="">weblink 6 February 2009, dead, {{harnvb|Organisation for Economic Co-operation and Development|2008|p=82}} The Port of Zeytinburnu is advantaged by its proximity to motorways and Atatürk International Airport,{{harvnb|Organisation for Economic Co-operation and Development|2008|p=143}} and long-term plans for the city call for greater connectivity between all terminals and the road and rail networks.{{harnvb|Organisation for Economic Co-operation and Development|2008|p=81}}Istanbul is an increasingly popular tourist destination; whereas just {{nowrap|2.4 million}} foreigners visited the city in 2000, it welcomed {{nowrap|12.56 million}} foreign tourists in 2015, making it the world's fifth most-visited city.WEB,weblink Vienna University of Economics and Business, Urban Tourism: An Analysis of Visitors to Istanbul, Kerimoğlu, Ebra, Ciraci, Hale, 12 February 2016, Istanbul is Turkey's second-largest international gateway, after Antalya, receiving a quarter of the nation's foreign tourists. Istanbul's tourist industry is concentrated in the European side, with {{nowrap|90 percent}} of the city's hotels there. Low- and mid-range hotels tend to be on the Sarayburnu; higher-end hotels are primarily in the entertainment and financial centers north of the Golden Horn. Istanbul's seventy museums, the most visited of which are the Topkapı Palace Museum and the Hagia Sophia, bring in {{nowrap|$30 million}} in revenue each year. The city's environmental master plan also notes that there are {{nowrap|17 palaces}}, {{nowrap|64 mosques}}, and {{nowrap|49 churches}} of historical significance in Istanbul.WEB,weblink Istanbul Valuation and Consulting, Istanbul '10, Turkey Tourism Market Research Reports, 2010, 29 March 2012, dead,weblink" title="">weblink 16 June 2012, (n.b. Source indicates that the Topkapı Palace Museum and the Hagia Sophia together bring in {{nowrap|55 million TL}}, approximately {{nowrap|$30 million}} in 2010, on an annual basis.)


File:İstanbul Arkeoloji Müzeleri (ana bina, Arkeoloji Müzesi) - Mart 2013.JPG|thumb|right|The Istanbul Archaeology Museums, founded by weblink Republic of Turkey Ministry of Culture and Tourism, İstanbul – Archaeology Museum, 19 April 2012, ">alt=The façade of a masonry building, with four Greek adorning its entrance, under a clear blue skyIstanbul was historically known as a cultural hub, but its cultural scene stagnated after the Turkish Republic shifted its focus toward Ankara.{{harvnb|Göktürk|Soysal|Türeli|2010|p=8}} The new national government established programs that served to orient Turks toward musical traditions, especially those originating in Europe, but musical institutions and visits by foreign classical artists were primarily centered in the new capital.{{harvnb|Reisman|2006|p=88}} Much of Turkey's cultural scene had its roots in Istanbul, and by the 1980s and 1990s Istanbul reemerged globally as a city whose cultural significance is not solely based on its past glory.{{harvnb|Göktürk|Soysal|Türeli|2010|pp=2–4}}File:Peramuzesi nighttime.jpg|thumb|left|Pera Museum in BeyoğluBeyoğluBy the end of the 19th century, Istanbul had established itself as a regional artistic center, with Turkish, European, and Middle Eastern artists flocking to the city. Despite efforts to make Ankara Turkey's cultural heart, Istanbul had the country's primary institution of art until the 1970s.{{harvnb|Göktürk|Soysal|Türeli|2010|pp=221–23}} When additional universities and art journals were founded in Istanbul during the 1980s, artists formerly based in Ankara moved in.{{harvnb|Göktürk|Soysal|Türeli|2010|pp=223–24}} Beyoğlu has been transformed into the artistic center of the city, with young artists and older Turkish artists formerly residing abroad finding footing there. Modern art museums, including İstanbul Modern, the Pera Museum, Sakıp Sabancı Museum and SantralIstanbul, opened in the 2000s to complement the exhibition spaces and auction houses that have already contributed to the cosmopolitan nature of the city.NEWS,weblink The New York Times, The Istanbul Art-Boom Bubble, Hansen, Suzy, 10 February 2012, 19 April 2012, These museums have yet to attain the popularity of older museums on the historic peninsula, including the Istanbul Archaeology Museums, which ushered in the era of modern museums in Turkey, and the Turkish and Islamic Arts Museum.File:İstanbul Modern February 2013.jpg|thumb|The former building of Istanbul Modern, a museum of contemporary art on the Bosphorus, is being replaced by a new one designed by Italian architect Renzo Piano.NEWS,weblink İşte yeni İstanbul Modern, Hürriyet, 28 November 2017, NEWS,weblink Istanbul Modern Closes Ahead of Renzo Piano's Multimillion-Dollar Revamp, Kate Brown, Artnet News, 1 March 2018, WEB,weblink Istanbul Modern, Renzo Piano Building Workshop (RPBW Architects), 21 May 2018, The new building is a component of the Galataport project for the renovation of the port of Istanbulport of IstanbulThe first film screening in Turkey was at Yıldız Palace in 1896, a year after the technology publicly debuted in Paris.{{harvnb|Göktürk|Soysal|Türeli|2010|pp=130–31}} Movie theaters rapidly cropped up in Beyoğlu, with the greatest concentration of theaters being along the street now known as İstiklal Avenue.{{harvnb|Göktürk|Soysal|Türeli|2010|pp=133–34}} Istanbul also became the heart of Turkey's nascent film industry, although Turkish films were not consistently developed until the 1950s.{{harvnb|Göktürk|Soysal|Türeli|2010|p=146}} Since then, Istanbul has been the most popular location to film Turkish dramas and comedies.{{harvnb|Göktürk|Soysal|Türeli|2010|p=165}} The Turkish film industry ramped up in the second half of the century, and with Uzak (2002) and My Father and My Son (2005), both filmed in Istanbul, the nation's movies began to see substantial international success.WEB,weblink Credit-Suisse, Golden Age for Turkish Cinema, Nikitin, Nikolaj, 6 March 2012, 6 July 2012,weblink 17 December 2012, dead, Istanbul and its picturesque skyline have also served as a backdrop for several foreign films, including From Russia with Love (1963), Topkapi (1964), The World Is Not Enough (1999), and Mission Istaanbul (2008).{{harvnb|Köksal|2012|pp=24–25}}Coinciding with this cultural reemergence was the establishment of the Istanbul Festival, which began showcasing a variety of art from Turkey and around the world in 1973. From this flagship festival came the International Istanbul Film Festival and the Istanbul International Jazz Festival in the early 1980s. With its focus now solely on music and dance, the Istanbul Festival has been known as the Istanbul International Music Festival since 1994.WEB,weblink The Istanbul Foundation for Culture and Arts, History, 13 April 2012, dead,weblink" title="">weblink 3 May 2011, The most prominent of the festivals that evolved from the original Istanbul Festival is the Istanbul Biennial, held every two years since 1987. Its early incarnations were aimed at showcasing Turkish visual art, and it has since opened to international artists and risen in prestige to join the elite biennales, alongside the Venice Biennale and the São Paulo Art Biennial.WEB,weblink The Guardian, Gibbons, Fiachra, 10 of the Best Exhibitions at the Istanbul Biennial, 21 September 2011, 13 April 2012,

Leisure and entertainment

File:Grand-Bazaar Shop.jpg|thumb|right|The Grand BazaarGrand BazaarIstanbul has numerous shopping centers, from the historic to the modern. The Grand Bazaar, in operation since 1461, is among the world's oldest and largest covered markets.JOURNAL, Hensel, Michael, Sungurogl, Defne, Ertaş, Hülya, Turkey at the Threshold, Architectural Design, 80, January–February 2010, 978-0-470-74319-5, London, harv, 1, {{harvnb|Köse|2009|pp=91–92}} Mahmutpasha Bazaar is an open-air market extending between the Grand Bazaar and the Egyptian Bazaar, which has been Istanbul's major spice market since 1660. Galleria Ataköy ushered in the age of modern shopping malls in Turkey when it opened in 1987.{{harvnb|Taşan-Kok|2004|p=166}} Since then, malls have become major shopping centers outside the historic peninsula. Akmerkez was awarded the titles of "Europe's best" and "World's best" shopping mall by the International Council of Shopping Centers in 1995 and 1996; Istanbul Cevahir has been one of the continent's largest since opening in 2005; Kanyon won the Cityscape Architectural Review Award in the Commercial Built category in 2006. İstinye Park in İstinye and Zorlu Center near Levent are among the newest malls which include the stores of the world's top fashion brands. Abdi İpekçi Street in Nişantaşı and Bağdat Avenue on the Anatolian side of the city have evolved into high-end shopping districts.WEB,weblink Hürriyet Daily News, Abdi İpekçi Avenue to be new Champs Elysee, 3 September 2010, Emeksiz, İpek, 28 April 2012, WEB,weblink CNN, Shopping in Singapore is Better than Paris, 6 January 2012, 28 April 2012,weblink" title="">weblink 17 April 2012, dead, File:Nişantaşı 2010-11 Yılbaşı Süslemeleri.jpg|thumb|left|New Year's Eve decorations in alt=A large tree decorated under the night sky in red and green and surrounded by spotlights, city lights, and mid-rise buildingsIstanbul is known for its historic seafood restaurants. Many of the city's most popular and upscale seafood restaurants line the shores of the Bosphorus (particularly in neighborhoods like Ortaköy, Bebek, Arnavutköy, Yeniköy, Beylerbeyi and Çengelköy). Kumkapı along the Sea of Marmara has a pedestrian zone that hosts around fifty fish restaurants.WEB,weblink Hürriyet Daily News, Managing the Difficult Balance Between Tourism and Authenticity, Schäfers, Marlene, 26 July 2008, 29 April 2012, The Princes' Islands, {{convert|15|km|mi|sp=us|0}} from the city center, are also popular for their seafood restaurants. Because of their restaurants, historic summer mansions, and tranquil, car-free streets, the Prince Islands are a popular vacation destination among Istanbulites and foreign tourists.WEB,weblink The New York Times, A Turkish Idyll Lost in Time, Schillinger, Liesl, 8 July 2011, 29 April 2012, Istanbul is also famous for its sophisticated and elaborately-cooked dishes of the Ottoman cuisine. Following the influx of immigrants from southeastern and eastern Turkey, which began in the 1960s, the foodscape of the city has drastically changed by the end of the century; with influences of Middle Eastern cuisine such as kebab taking an important place in the food scene. Restaurants featuring foreign cuisines are mainly concentrated in the Beyoğlu, Beşiktaş, Şişli, and Kadıköy districts.Istanbul has active nightlife and historic taverns, a signature characteristic of the city for centuries if not millennia. Along İstiklal Avenue is the Çiçek Pasajı, now home to winehouses (known as meyhanes), pubs, and restaurants.{{harvnb|Freely|2011|p=429}} İstiklal Avenue, originally known for its taverns, has shifted toward shopping, but the nearby Nevizade Street is still lined with winehouses and pubs.{{harvnb|Keyder|1999|p=34}}WEB, Kugel, Seth,weblink The $100 Istanbul Weekend, The New York Times, 17 July 2011, 29 April 2012, Some other neighborhoods around İstiklal Avenue have been revamped to cater to Beyoğlu's nightlife, with formerly commercial streets now lined with pubs, cafes, and restaurants playing live music.{{harvnb|Knieling|Othengrafen|2009|pp=228–34}} Other focal points for Istanbul's nightlife include Nişantaşı, Ortaköy, Bebek, and Kadıköy.WEB, Tomasetti, Kathryn, Rutherford, Tristan,weblink The Guardian, A Big Night Out in Istanbul – And a Big Breakfast the Morning After, 23 March 2012, 29 April 2012,


{{see also|List of sport facilities in Istanbul}}{{Multiple image| align = right| direction = vertical| width =| image1 = Atatürk Olimpiyat.jpg| caption1 =| image2 = Ali Sami Yen Spor Kompleksi Türk Telekom Arena2.jpg| caption2 = Atatürk Olympic Stadium (top)Türk Telekom Stadium (bottom)}}Istanbul is home to some of Turkey's oldest sports clubs. Beşiktaş JK, established in 1903, is considered the oldest of these sports clubs. Due to its initial status as Turkey's only club, Beşiktaş occasionally represented the Ottoman Empire and Turkish Republic in international sports competitions, earning the right to place the Turkish flag inside its team logo.WEB,weblink FIFA, 8 April 2012, Besiktas: The Black Eagles of the Bosporus, Galatasaray SK and Fenerbahçe SK have fared better in international competitions and have won more Süper Lig titles, at 22 and 19 times, respectively.WEB,weblink Turkey – List of Champions,, Rec.Sport.Soccer Statistics Foundation, RSSSF, 31 May 2018, WEB,weblink FIFA, Galatasaray: The Lions of the Bosporus, 10 April 2012, WEB,weblink The Union of European Football Associations, UEFA Champions League 2007/08 – History – Fenerbahçe, 8 October 2011, 10 April 2012, Galatasaray and Fenerbahçe have a long-standing rivalry, with Galatasaray based in the European part and Fenerbahçe based in the Anatolian part of the city. Istanbul has seven basketball teams—Anadolu Efes, Beşiktaş, Darüşşafaka, Fenerbahçe, Galatasaray, İstanbul Büyükşehir Belediyespor and Büyükçekmece—that play in the premier-level Turkish Basketball Super League.WEB,weblink Turkish Basketball Super League, Puan Durumu: 2015–2016 Sezonu 30. Hafta, League Table: 2015–16 Season, Round 30, Turkish, 6 June 2016, Many of Istanbul's sports facilities have been built or upgraded since 2000 to bolster the city's bids for the Summer Olympic Games. Atatürk Olympic Stadium, the largest multi-purpose stadium in Turkey, was completed in 2002 as an IAAF first-class venue for track and field.WEB,weblink The International Association of Athletics Federations, List of Certified Athletics Facilities, 1 January 2013, 2 January 2013, The stadium hosted the 2005 UEFA Champions League Final and will host the 2020 UEFA Champions League Final.NEWS,weblink Istanbul to host 2020 Champions League final, Uefa confirms, 24 May 2018, The Independent, 24 May 2018, Şükrü Saracoğlu Stadium, Fenerbahçe's home field, hosted the 2009 UEFA Cup Final three years after its completion. Türk Telekom Arena opened in 2011 to replace Ali Sami Yen Stadium as Galatasaray's home turf,WEB,weblink The Union of European Football Associations, 2008/09: Pitmen strike gold in Istanbul, 20 May 2009, 10 April 2012, dead,weblink" title="">weblink 17 September 2013, WEB,weblink Hürriyet Daily News, Aşçıoğlu Sues Partners in Joint Project Over Ali Sami Yen Land, Aktaş, İsmail, 14 March 2012, 3 July 2012, while Vodafone Park opened in 2016 to replace BJK İnönü Stadium as the home turf of Beşiktaş, which won the Süper Lig in the same season. All four stadiums are elite Category 4 (formerly five-star) UEFA stadiums.{{efn|name=uefa-category|UEFA does not apparently keep a list of Category 4 stadiums, but regulations stipulate that only these elite stadiums are eligible to host UEFA Champions League Finals,WEB,weblink The Union of European Football Associations, 14, Regulations of the UEFA European Football Championship 2010–12, 10 April 2012, which Atatürk Olympic Stadium did in 2005, and UEFA Europa League (formerly UEFA Cup) Finals,WEB,weblink The Union of European Football Associations, 17, Regulations of the UEFA Europa League 2010/11, 10 April 2012, which Şükrü Saracoğlu Stadium did in 2009. Türk Telekom Arena is noted as an elite UEFA stadium by its architects.WEB,, 'asp' Architekten, Türk Telekom Arena Istanbul, 5 July 2012, dead, 26 April 2013, }}{{Multiple image|align=left|direction=vertical|image1=Sinan Erdem Dome Panaroma.jpg|image2=Ülker Sports Arena- Fenerbahçe vs. Armani Milano.jpg|caption2=Sinan Erdem Dome (top)Ülker Sports Arena (bottom)}}The Sinan Erdem Dome, among the largest indoor arenas in Europe, hosted the final of the 2010 FIBA World Championship, the 2012 IAAF World Indoor Championships, as well as the 2011–12 Euroleague and 2016–17 EuroLeague Final Fours.WEB,weblink FIBA, 2010 FIBA World Championship Istanbul: Arenas, 10 April 2012, dead,weblink" title="">weblink 3 June 2013, Prior to the completion of the Sinan Erdem Dome in 2010, Abdi İpekçi Arena was Istanbul's primary indoor arena, having hosted the finals of EuroBasket 2001.WEB,weblink FIBA, Istanbul – Arenas, 2010, 29 June 2012, dead,weblink" title="">weblink 3 June 2013, Several other indoor arenas, including the Beşiktaş Akatlar Arena, have also been inaugurated since 2000, serving as the home courts of Istanbul's sports clubs. The most recent of these is the 13,800-seat Ülker Sports Arena, which opened in 2012 as the home court of Fenerbahçe's basketball teams.WEB,weblink Euroleague Basketball, Fenerbahce Ulker's new home, Ulker Sports Arena, opens, 24 January 2012, 29 June 2012, Despite the construction boom, five bids for the Summer Olympics—in 2000, 2004, 2008, 2012, and 2020—and national bids for UEFA Euro 2012 and UEFA Euro 2016 have ended unsuccessfully.WEB,weblink The Christian Science Monitor, Wilson, Stephen, 2020 Olympics: Six cities lodge bids for the games, 2 September 2011, 29 June 2012, The TVF Burhan Felek Sport Hall is one of the major volleyball arenas in the city and hosts clubs such as Eczacıbaşı VitrA, Vakıfbank SK, and Fenerbahçe who have won numerous European and World Championship titles.Between 2005 and 2011, Istanbul Park racing circuit hosted the annual Formula One Turkish Grand Prix.WEB,weblink The Guardian, Richards, Giles, Turkey Grand Prix Heads for the Scrapyard Over $26m Price Tag, 22 April 2011, 3 July 2012, Istanbul Park was also a venue of the World Touring Car Championship and the European Le Mans Series in 2005 and 2006, but the track has not seen either of these competitions since then.WEB,weblink FIA World Touring Car Championship, Events, 2012, 29 June 2012, dead,weblink" title="">weblink 16 June 2012, WEB,weblink The Circuits, European Le Mans Series, 2012, 3 July 2012, dead,weblink" title="">weblink 7 July 2012, It also hosted the Turkish Motorcycle Grand Prix between 2005 and 2007. Istanbul was occasionally a venue of the F1 Powerboat World Championship, with the last race on the Bosphorus strait on 12–13 August 2000.WEB,weblink F1 Powerboat World Championship, 2000 Race Calendar, 2000, 8 January 2017, The last race of the Powerboat P1 World Championship on the Bosphorus took place on 19–21 June 2009.WEB,weblink Powerboat P1 – 2009 World Championship – Istanbul, Turkey, Supersport, 21 June 2009, Istanbul Sailing Club, established in 1952, hosts races and other sailing events on the waterways in and around Istanbul each year.WEB,weblink The Istanbul Sailing Club, 2012 Yarış Programı ve Genel Yarış Talimatı, Turkish, 2012 Race Schedule and General Sailing Instructions, 2012, 3 July 2012, dead,weblink" title="">weblink 4 June 2012, WEB,weblink Hürriyet Daily News, Turkish Daily News, Sailing Week Starts in Istanbul, 23 August 2008, 3 July 2012, Turkish Offshore Racing Club also hosts major yacht races, such as the annual Naval Forces Trophy.WEB,weblink The Turkish Offshore Racing Club, About Us, 31 March 2012, 3 July 2012,weblink" title="">weblink 5 September 2013, dead,


File:Istanbul -Hürriyet- 2000 by RaBoe 02.jpg|right|thumb|Established in 1948, alt=Entrance to an office building with an overhead sign saying 'Hürriyet'Most state-run radio and television stations are based in Ankara, but Istanbul is the primary hub of Turkish media. The industry has its roots in the former Ottoman capital, where the first Turkish newspaper, Takvim-i Vekayi (Calendar of Affairs), was published in 1831. The Cağaloğlu street on which the newspaper was printed, Bâb-ı Âli Street, rapidly became the center of Turkish print media, alongside Beyoğlu across the Golden Horn.{{harvnb|Brummett|2000|pp=11, 35, 385–86}}Istanbul now has a wide variety of periodicals. Most nationwide newspapers are based in Istanbul, with simultaneous Ankara and İzmir editions.WEB,weblink The Library of Congress Federal Research Division, Country Profile: Turkey, August 2008, 8 May 2012, Hürriyet, Sabah, Posta and Sözcü, the country's top four papers, are all headquartered in Istanbul, boasting more than 275,000 weekly sales each.WEB,weblink Tiraj, Turkish, Medyatava, 25 December 2016, 25 December 2016, Hürriyet's English-language edition, Hürriyet Daily News, has been printed since 1961, but the English-language Daily Sabah, first published by Sabah in 2014, has overtaken it in circulation. Several smaller newspapers, including popular publications like Cumhuriyet, Milliyet and Habertürk are also based in Istanbul. Istanbul also has long-running Armenian language newspapers, notably the dailies Marmara and Jamanak and the bilingual weekly Agos in Armenian and Turkish.(File:İstanbul radio1.JPG|left|thumb|Headquarters of the state-run TRT's Istanbul radio operations|alt=A four-story, white flat-roofed building with two Turkish flags and a portrait on the exterior)Radio broadcasts in Istanbul date back to 1927, when Turkey's first radio transmission came from atop the Central Post Office in Eminönü. Control of this transmission, and other radio stations established in the following decades, ultimately came under the state-run Turkish Radio and Television Corporation (TRT), which held a monopoly on radio and television broadcasts between its founding in 1964 and 1990.WEB,weblink The Turkish Radio and Television Corporation, TRT – Radio, 8 May 2012, dead,weblink" title="">weblink 9 June 2011, Today, TRT runs four national radio stations; these stations have transmitters across the country so each can reach over {{nowrap|90 percent}} of the country's population, but only {{nowrap|Radio 2}} is based in Istanbul. Offering a range of content from educational programming to coverage of sporting events, {{nowrap|Radio 2}} is the most popular radio station in Turkey. Istanbul's airwaves are the busiest in Turkey, primarily featuring either Turkish-language or English-language content. One of the exceptions, offering both, is Açık Radyo (94.9 FM). Among Turkey's first private stations, and the first featuring foreign popular music, was Istanbul's Metro FM (97.2 FM). The state-run {{nowrap|Radio 3}}, although based in Ankara, also features English-language popular music, and English-language news programming is provided on NTV Radyo (102.8 FM).{{harvnb|Time Out Guides|2010|p=224}}TRT-Children is the only TRT television station based in Istanbul.WEB,weblink The Turkish Radio and Television Corporation, TRT – Television, 8 May 2012, dead,weblink" title="">weblink 14 August 2011, Istanbul is home to the headquarters of several Turkish stations and regional headquarters of international media outlets. Istanbul-based Star TV was the first private television network to be established following the end of the TRT monopoly; Star TV and Show TV (also based in Istanbul) remain highly popular throughout the country, airing Turkish and American series.{{harvnb|Norris|2010|p=184}} Kanal D and ATV are other stations in Istanbul that offer a mix of news and series; NTV (partnered with U.S. media outlet MSNBC) and Sky Turk—both based in the city—are mainly just known for their news coverage in Turkish. The BBC has a regional office in Istanbul, assisting its Turkish-language news operations, and the American news channel CNN established the Turkish-language CNN Türk there in 1999.NEWS,weblink BBC, Chris Morris, 8 May 2012,


{{Further|Education in Turkey}}File:Istanbul University cropped.JPG|thumb|right|upright|Main entrance gate of alt=A triumphal arch adjacent to a Turkish flag and in front of an open plazaIstanbul University, founded in 1453, is the oldest Turkish educational institution in the city. Although originally an Islamic school, the university established law, medicine, and science departments in the 19th century and was secularized after the founding of the Turkish Republic.WEB, Istanbul University,weblink History, 11 August 2011, 20 August 2012, dead,weblink" title="">weblink 13 November 2012, Istanbul Technical University, founded in 1773, is the world's third-oldest university dedicated entirely to engineering sciences.WEB,weblink Istanbul Technical University, History, 4 July 2012, dead,weblink" title="">weblink 18 June 2012, WEB,weblink Board of European Students of Technology, University Profile: Istanbul Technical University, Turkey, 30 March 2012, dead,weblink" title="">weblink 16 November 2011, These public universities are two of just eight across the city;WEB,weblinkweblink" title="">weblink dead, 30 November 2011, The Turkish Council of Higher Education, State Universities, 30 March 2012, other prominent state universities in Istanbul include the Mimar Sinan Fine Arts University, which served as Turkey's primary institution of art until the 1970s, and Marmara University, the country's third-largest institution of higher learning.WEB,weblink Marmara University, About Marmara, 4 July 2012, dead,weblink" title="">weblink 30 June 2012, File:RobertCollegeGouldHall1.jpg|thumb|left|Established in 1863, Robert College has been an American boarding school since its higher education section became alt=An ivy-covered neoclassical building atop a hill, with a greenery-adorned walkway leading to its entranceMost established universities in Istanbul are backed by the government; the city also has several prominent private institutions. The first modern private university in Istanbul, also the oldest American school in existence in its original location outside the United States, was Robert College, founded by Christopher Robert, an American philanthropist, and Cyrus Hamlin, a missionary devoted to education, in 1863. The tertiary element of its education program became the public Boğaziçi University in 1971; the remaining portion in Arnavutköy continues as a boarding high-school under the name Robert College.WEB, Doğramacı, İhsan,weblink DOC, Private Versus Public Universities: The Turkish Experience, 18th International Conference on Higher Education, Ankara, August 2005, 30 March 2012, WEB,weblink Robert College, History of RC, 2012, 15 October 2012,weblink" title="">weblink 22 October 2012, dead, Private universities were officially outlawed in Turkey before the Constitution of 1982, but there were already fifteen private "higher schools", which were effectively universities, in Istanbul by 1970. The first private university established in Istanbul since 1982 was Koç University (founded in 1992), and another dozen had opened within the following decade. Today, there are at least 30 private universities in the city, including Istanbul Commerce University and Kadir Has University.WEB,weblinkweblink" title="">weblink dead, 30 November 2011, The Turkish Council of Higher Education, Private Universities, 30 March 2012, A new biomedical research and development hub, called Bio Istanbul, is under construction in Başakşehir, and will host 15,000 residents, 20,000 working commuters, and a university upon completion.NEWS, Baraja nazır en akıllı kent,weblink Hürriyet, 4 May 2013, 5 May 2013, WEB,weblink Aecom expands role on $2.2bn Istanbul scheme, 5 September 2012,, EverythingTurkish, 31 August 2016, dead,weblink" title="">weblink 21 September 2016, File:Kuleli Military High School.jpg|thumb|right|View of Kuleli Military High SchoolKuleli Military High SchoolIn 2007, there were about 4,350 schools, about half of which were primary schools; on average, each school had 688 students. In recent years, Istanbul's educational system has expanded substantially; from 2000 to 2007, the number of classrooms and teachers nearly doubled and the number of students increased by more than {{nowrap|60 percent}}.WEB,weblink Governorship of Istanbul, 2007 Yılına Ait Veriler, Turkish, Data for 2007,weblink" title="">weblink 18 October 2012, 30 March 2012, dead, Galatasaray High School, established in 1481 as the Galata Palace Imperial School, is the oldest high school in Istanbul and the second-oldest educational institution in the city. It was built at the behest of Sultan Bayezid II, who sought to bring students with diverse backgrounds together as a means of strengthening his growing empire.WEB,weblink Galatasaray University, Historique, French, History, 30 March 2012, dead,weblink" title="">weblink 21 March 2012, It is one of Turkey's Anatolian High Schools, elite public high schools that place a stronger emphasis on instruction in foreign languages. Galatasaray, for example, offers instruction in French; other Anatolian High Schools primarily teach in English or German alongside Turkish.WEB,weblink Ministry of Education, Millî Eğitim Bakanlığı Anadolu Liseleri Yönetmeliği, Turkish, Ministry of Education Regulation on Anatolian High Schools, 5 November 1999, 30 March 2012, dead,weblink" title="">weblink 15 June 2012, WEB,weblink Galatasaray High School, Galatasaray Lisesi, 4 July 2012, The city also has foreign high schools, such as Liceo Italiano, that were established in the 19th century to educate foreigners.WEB,weblink Liceo Italiano, The History of the Italian School, 3 July 2012, dead,weblink" title="">weblink 20 January 2012, Kuleli Military High School, along the shores of the Bosphorus in Çengelköy, and Turkish Naval High School, on one of the Princes' Islands, were military high schools, complemented by three military academies—the Turkish Air Force, Turkish Military, and Turkish Naval Academies. Both schools were shut Darüşşafaka High School provides free education to children across the country missing at least one parent. Darüşşafaka begins instruction with the fourth grade, providing instruction in English and, starting in sixth grade, a second foreign language—German or French.WEB,weblink Darüşşafaka High School, Principles of Education, 6 July 2012, dead,weblink" title="">weblink 9 May 2012, Other prominent high schools in the city include Istanbul Lisesi (founded in 1884), Kabataş Erkek Lisesi (founded in 1908)WEB,weblink Kabataş Erkek Lisesi, Kabataş Erkek Lisesi, Turkish, 31 March 2012, dead,weblink" title="">weblink 2 April 2012, and Kadıköy Anadolu Lisesi (founded in 1955).WEB,weblink Kadıköy Anadolu Lisesi, KAL Uygulamalı Yabancı Dil Laboratuvarı, Turkish, KAL Applied Foreign Language Lab, 31 March 2012, dead,weblink" title="">weblink 20 June 2013, In 1909, in Constantinople there were 626 primary schools and 12 secondary schools. Of the primary schools 561 were of the lower grade and 65 were of the higher grade; of the latter, 34 were public and 31 were private. There was one secondary college and eleven secondary preparatory schools."Report of the Commissioner of Education for the Year Ended June 30, 1912." Whole Number 525. Volume 1. Washington Government Printing Office, 1913. In: Congressional Edition, Volume 6410. U.S. Government Printing Office, 1913. p. 570.

Public services

{{Further|Telecommunications in Turkey|Health care in Turkey}}File:Sunset at Santral Istanbul.jpg|thumb|right|The Silahtarağa Power Station, now the art museum alt=A brick factory stands in front of a park, with open green space, a reflecting pool, and benchesIstanbul's first water supply systems date back to the city's early history, when aqueducts (such as the Valens Aqueduct) deposited the water in the city's numerous cisterns.WEB,weblink Istanbul and the History of Water in Istanbul, Istanbul Water and Sewerage Administration, 11 March 2006,weblink" title="">weblink 29 September 2007, dead, At the behest of Suleiman the Magnificent, the Kırkçeşme water supply network was constructed; by 1563, the network provided {{convert|4200|m3|ft3|sp=us}} of water to {{nowrap|158 sites}} each day. In later years, in response to increasing public demand, water from various springs was channeled to public fountains, like the Fountain of Ahmed III, by means of supply lines.{{harvnb|Tigrek|Kibaroğlu|2011|pp=33–34}} Today, Istanbul has a chlorinated and filtered water supply and a sewage treatment system managed by the Istanbul Water and Sewerage Administration (İstanbul Su ve Kanalizasyon İdaresi, İSKİ).WEB,weblink İSKİ Administration, Istanbul Water and Sewerage Administration, 31 March 2012,weblink" title="">weblink 29 September 2007, dead, The Silahtarağa Power Station, a coal-fired power plant along the Golden Horn, was the sole source of Istanbul's electricity between 1914, when its first engine room was completed, and 1952.WEB,weblink Silahtarağa Power Plant, SantralIstanbul, 31 March 2012, dead,weblink" title="">weblink 30 July 2012, Following the founding of the Turkish Republic, the plant underwent renovations to accommodate the city's increasing demand; its capacity grew from {{nowrap|23 megawatts}} in 1923 to a peak of {{nowrap|120 megawatts}} in 1956.WEB,weblink 2001, Short History of Electrical Energy in Turkey, Turkish Electricity Transmission Company,weblink" title="">weblink 28 November 2009, dead, 5 July 2012, Capacity declined until the power station reached the end of its economic life and shut down in 1983. The state-run Turkish Electrical Authority (TEK) briefly—between its founding in 1970 and 1984—held a monopoly on the generation and distribution of electricity, but now the authority—since split between the Turkish Electricity Generation Transmission Company (TEAŞ) and the Turkish Electricity Distribution Company (TEDAŞ)—competes with private electric utilities.(File:İstanbul Sirkeci Büyük Postane 1.JPG|left|thumb|Istanbul's central post office dates back to 1909.WEB,weblink Emporis, Central Post Office, 4 April 2012, |alt=An arched neoclassical building with hanging banners, with a yellow vehicle parked in front)The Ottoman Ministry of Post and Telegraph was established in 1840 and the first post office, the Imperial Post Office, opened near the courtyard of Yeni Mosque. By 1876, the first international mailing network between Istanbul and the lands beyond the Ottoman Empire had been established.WEB,weblink The Post and Telegraph Organization, About Us | Brief History, 31 March 2012,weblink" title="">weblink 7 August 2011, dead, Sultan Abdülmecid I issued Samuel Morse his first official honor for the telegraph in 1847, and construction of the first telegraph line—between Istanbul and Edirne—finished in time to announce the end of the Crimean War in 1856.{{harvnb|Masters|Ágoston|2009|p=557}} A nascent telephone system began to emerge in Istanbul in 1881 and after the first manual telephone exchange became operational in Istanbul in 1909, the Ministry of Post and Telegraph became the Ministry of Post, Telegraph, and Telephone.{{harvnb|Shaw|Shaw|1977|p=230}} GSM cellular networks arrived in Turkey in 1994, with Istanbul among the first cities to receive the service.WEB,weblink About Türk Telekom: History, Türk Telekom, 31 March 2012, Today, mobile and landline service is provided by private companies, after Türk Telekom, which split from the Ministry of Post, Telegraph, and Telephone in 1995, was privatized in 2005. Postal services remain under the purview of what is now the Post and Telegraph Organization (retaining the acronym PTT).In 2000, Istanbul had {{nowrap|137 hospitals}}, of which 100 were private.{{harvnb|Sanal|2011|p=85}} Turkish citizens are entitled to subsidized healthcare in the nation's state-run hospitals. As public hospitals tend to be overcrowded or otherwise slow, private hospitals are preferable for those who can afford them. Their prevalence has increased significantly over the last decade, as the percentage of outpatients using private hospitals increased from {{nowrap|6 percent}} to {{nowrap|23 percent}} between 2005 and 2009.{{harvnb|Oxford Business Group|2009|p=197}} Many of these private hospitals, as well as some of the public hospitals, are equipped with high-tech equipment, including MRI machines, or associated with medical research centers.{{harvnb|Oxford Business Group|2009|p=198}} Turkey has more hospitals accredited by the U.S.-based Joint Commission than any other country in the world, with most concentrated in its big cities. The high quality of healthcare, especially in private hospitals, has contributed to a recent upsurge in medical tourism to Turkey (with a {{nowrap|40 percent}} increase between 2007 and 2008).{{harvnb|Connell|2010|pp=52–53}} Laser eye surgery is particularly common among medical tourists, as Turkey is known for specializing in the procedure.{{harvnb|Papathanassis|2011|p=63}}


File:Fatih Sultan Mehmet Bridge panorama.jpg|thumb|right|The Fatih Sultan Mehmet Bridge is one of three suspension bridges on the alt=A docked sailboat floats in front of a suspension bridge, at twilight.Istanbul's primary motorways are the O-1, O-2, O-3 and O-4. The O-1 forms the city's inner ring road, traversing the 15 Temmuz Şehitler (First Bosphorus) Bridge, and the O-2 is the city's outer ring road, crossing the Fatih Sultan Mehmet (Second Bosphorus) Bridge. The O-2 continues west to Edirne and the O-4 continues east to Ankara; the O-2, O-3, and O-4 are part of European route E80 (the Trans-European Motorway) between Portugal and the Turkish–Iranian border.{{Google maps|url=,29.047165&spn=0.147611,0.292168&t=m&z=12|title=Istanbul Overview|accessdate=1 April 2012|link=no}} In 2011, the first and second bridges on the Bosphorus carried {{nowrap|400,000 vehicles}} each day.{{harvnb|Efe|Cürebal|2011|p=720}} The Yavuz Sultan Selim (Third Bosphorus) Bridge entered service on 26 August 2016.WEB,weblink 3rd Bosphorus bridge opening ceremony, TRT World, 25 August 2016, dead,weblink" title="">weblink 28 August 2016, Environmentalist groups worry that the third bridge will endanger the remaining green areas to the north of Istanbul.WEB,weblink The European Investment Bank, Eurasia Tunnel Environmental and Social Impact Assessment, Volume I: Non Technical Summary (NTS), ERM Group (Germany and UK) and ELC-Group (Istanbul), January 2011, 4 July 2012, WEB,weblink The Guardian, Letsch, Constanze, Plan for New Bosphorus Bridge Sparks Row Over Future of Istanbul, 8 June 2012, 4 July 2012, Apart from the three Bosphorus Bridges, the dual-deck, {{convert|14.6|km|mi|adj=on|sp=us}} Eurasia Tunnel (which entered service on 20 December 2016) under the Bosphorus strait also provides road crossings for motor vehicles between the Asian and European sides of Turkey.WEB,weblink Istanbul's $1.3BN Eurasia Tunnel prepares to open, Anadolu Agency, 19 December 2016, {{Multiple image|align=left|direction=vertical|image1=Türkiye İstanbul nostalji iki tramvay karşılaşması.jpg|image2=Istanbul T1 line Alstom Citadis tram.jpg|caption2=Istanbul's nostalgic and modern tram systems}}Istanbul's local public transportation system is a network of trams, funiculars, metro lines, buses, bus rapid transit, and ferries. Fares across modes are integrated, using the contactless Istanbulkart, introduced in 2009, or the older Akbil electronic ticket device.WEB,weblink Songün, Sevim, Hürriyet Daily News, Istanbul Commuters Skeptical of Transit Change, 16 July 2010, 5 July 2012, Trams in Istanbul date back to 1872, when they were horse-drawn, but even the first electrified trams were decommissioned in the 1960s.WEB,weblink Istanbul Electricity, Tramway and Tunnel General Management, Chronological History of IETT, 1 April 2012, dead,weblink" title="">weblink 16 June 2012, Operated by Istanbul Electricity, Tramway, and Tunnel General Management (İETT), trams slowly returned to the city in the 1990s with the introduction of a nostalgic route and a faster modern tram line, which now carries {{nowrap|265,000 passengers}} each day.WEB,weblink İstanbul Ulaşım A.Ş. (Istanbul Transport Corporation), T1 Bağcılar–Kabataş Tramvay Hattı, Turkish, T1 Bağcılar–Kabataş Tram Line, 20 August 2012,weblink" title="">weblink 18 April 2014, dead, The Tünel opened in 1875 as the world's second-oldest subterranean rail line (after London's Metropolitan Railway). It still carries passengers between Karaköy and İstiklal Avenue along a steep {{convert|573|m|ft|adj=on|sp=us}} track; a more modern funicular between Taksim Square and Kabataş began running in 2006.WEB,weblink Istanbul Electricity, Tramway and Tunnel, Tunnel, 3 April 2012, dead,weblink" title="">weblink 6 January 2012, (Note: It is apparent this is a machine translation of the original.)WEB,weblink İstanbul Ulaşım A.Ş. (Istanbul Transport Corporation), F1 Taksim–Kabataş Füniküler Hattı, Turkish, F1 Bağcılar–Kabataş Funicular Line, 20 August 2012,weblink" title="">weblink 26 August 2012, dead, File:M2_at_Levent_station.JPG|thumb|Levent station of the Istanbul MetroIstanbul MetroThe Istanbul Metro comprises five lines (the M1, M2, M3 and M6 on the European side, and the M4 on the Asian side) with several other lines (such as the M5, M7, and M8) and extensions under construction.WEB,weblink İstanbul Ulaşım A.Ş. (Istanbul Transport Corporation), Raylı Sistemler, Turkish, Rail Systems, 20 August 2012,weblink" title="">weblink 9 April 2014, dead, WEB,weblink İstanbul Ulaşım A.Ş. (Istanbul Transport Corporation), Ağ Haritaları, Turkish, Network Maps, 20 August 2012,weblink" title="">weblink 15 August 2012, dead, The two sides of Istanbul's metro are connected under the Bosphorus by the Marmaray tunnel, inaugurated in 2013 as the first rail connection between Thrace and Anatolia.WEB,weblink Oxford Business Group, Turkey: Connecting Continents, Economic Updates, 7 March 2012, 3 April 2012, Until then, buses provide transportation within and between the two-halves of the city, accommodating {{nowrap|2.2 million}} passenger trips each day.WEB,weblink Istanbul Electricity, Tramway and Tunnel General Management, Public Transportation in Istanbul, 3 April 2012, dead,weblink" title="">weblink 4 January 2013, The Metrobus, a form of bus rapid transit, crosses the Bosphorus Bridge, with dedicated lanes leading to its termini.WEB,weblink Istanbul Electricity, Tramway and Tunnel General Management, Metrobus, 3 April 2012, dead,weblink" title="">weblink 6 October 2011, İDO (Istanbul Seabuses) runs a combination of all-passenger ferries and car-and-passenger ferries to ports on both sides of the Bosphorus, as far north as the Black Sea.WEB,weblink İDO, Interaktif Haritalar | İç Hatlar, Turkish, Interactive Map of Timetables | Inner-City Lines, 3 April 2012, dead,weblink" title="">weblink 31 May 2012, WEB,weblink İDO, Dış Hatlar, Turkish, Interactive Map of Timetables | Inter-City Lines, 3 April 2012, dead,weblink" title="">weblink 16 June 2012, With additional destinations around the Sea of Marmara, İDO runs the largest municipal ferry operation in the world.WEB,weblink Grytsenko, Sergiy, The European Bank for Reconstruction and Development, EBRD Supports Privatisation of Ferry Operations in Istanbul, 26 September 2011, 4 April 2012, dead,weblink" title="">weblink 17 June 2013, The city's main cruise ship terminal is the Port of Istanbul in Karaköy, with a capacity of 10,000 passengers per hour.WEB,weblink Turkey Maritime Organization, Liman Hizmetleri, Turkish, Port Services, 10 February 2011, 28 August 2012, dead,weblink" title="">weblink 16 October 2012, Most visitors enter Istanbul by air, but about half a million foreign tourists enter the city by sea each year.File:Bahnhofsfront-Istanbul-Sirkeci retouched 2.jpg|thumb|left|Originally opened in 1873 with a smaller terminal building as the main terminus of the Rumelia (Balkan) Railway of the Ottoman Empire, which connected Istanbul with Vienna, the current Sirkeci Terminal building was constructed between 1888 and 1890, and became the eastern terminus of the Orient Express from ParisParisInternational rail service from Istanbul launched in 1889, with a line between Bucharest and Istanbul's Sirkeci Terminal, which ultimately became famous as the eastern terminus of the Orient Express from Paris. Regular service to Bucharest and Thessaloniki continued until the early 2010s, when the former was interrupted for Marmaray construction and the latter was halted due to economic problems in Greece.WEB,weblink Turkish State Railways, Turkish, Bölgesel Yolcu Trenleri, Regional Passenger Trains, 3 April 2012, dead,weblink" title="">weblink 4 April 2012, WEB,weblink The Guardian, Keenan, Steve, How Your Greek Summer Holiday Can Help Save Greece, 22 June 2012, 28 September 2012, After Istanbul's Haydarpaşa Terminal opened in 1908, it served as the western terminus of the Baghdad Railway and an extension of the Hejaz Railway; today, neither service is offered directly from Istanbul.WEB,weblink Emporis, Haydarpasa Train Station, 3 April 2012, NEWS,weblink BBC, Head, Jonathan, 16 February 2010, 3 April 2012, Iraq – Turkey railway link re-opens, WEB,weblink Turkish National Railways, Transports to Middle-Eastern Countries, 3 April 2012, dead,weblink" title="">weblink 15 April 2012, Service to Ankara and other points across Turkey is normally offered by Turkish State Railways, but the construction of Marmaray and the Ankara-Istanbul high-speed line forced the station to close in 2012.WEB,weblink Akay, Latifa, Today's Zaman, 2012 Sees End of Line for Haydarpaşa Station, 5 February 2012, 3 April 2012, dead,weblink" title="">weblink 16 September 2013, New stations to replace both the Haydarpaşa and Sirkeci terminals, and connect the city's disjointed railway networks, are expected to open upon completion of the Marmaray project; until then, Istanbul is without intercity rail service. Private bus companies operate instead. Istanbul's main bus station is the largest in Europe, with a daily capacity of {{nowrap|15,000 buses}} and {{nowrap|600,000 passengers}}, serving destinations as distant as Frankfurt.WEB,weblink Avrasya Terminal İşletmeleri A.Ş. (Eurasian Terminal Management, Inc.), İstanbul Otogarı, Turkish, Istanbul Bus Station, 3 April 2012, dead,weblink" title="">weblink 20 April 2012, WEB,weblink Touring, Eurolines Germany–Deutsche Touring GmbH–Europabus, 3 April 2012, File:Ataturk Airport Karakas-1.jpg|thumb|right|Istanbul Atatürk Airport, which handled 63.7 million passengers in 2017,WEB,weblink 2015 Airport Traffic Statistics, Airport Council International, 11 April 2016, 7 June 2016, was the city's primary airport before the opening of Istanbul Airport in ArnavutkoyArnavutkoyIstanbul has two international airports. The larger is Istanbul Atatürk, {{convert|24|km|mi|sp=us}} west of the city center. It handled {{nowrap|61.3 million}} passengers in 2015, making it the third-busiest airport in Europe and the eighteenth-busiest in the world.WEB,weblink Airports Council International, Preliminary 2013 World Airport Traffic and Rankings, 17 March 2014, 25 March 2014, Sabiha Gökçen International, {{convert|45|km|mi|0|sp=us}} southeast of the city center, opened in 2001 to relieve Atatürk. Dominated by low-cost carriers, Istanbul's second airport has rapidly become popular, especially since the opening of a new international terminal in 2009;WEB,weblink The Financial Times, Strauss, Delphine, Sabiha Gökçen: New Terminal Lands on Time and Budget, 25 November 2009, 4 July 2012, the airport handled {{nowrap|14.7 million}} passengers in 2012, a year after Airports Council International named it the world's fastest-growing airport.WEB,weblink General Directorate of State Airports Authority, Yolcu Trafiği (Gelen-Giden), Turkish, Passenger Traffic (Incoming-Outgoing), 30 March 2013,weblink" title="">weblink 4 November 2013, dead, WEB,weblink Today's Zaman, Sabiha Gökçen Named World's Fastest Growing Airport, 18 August 2011, 4 April 2012, dead,weblink" title="">weblink 16 September 2013, Atatürk has also experienced rapid growth, as its {{nowrap|20.6 percent}} rise in passenger traffic between 2011 and 2012 was the highest among the world's top 30 airports. Because of the traffic at Istanbul's airports,NEWS, Third airport a must to ease air traffic in İstanbul,weblink Today's Zaman, 29 April 2012, 6 May 2013, dead,weblink" title="">weblink 4 November 2013, a third international airport is planned for the Black Sea coast.NEWS, Turkish firms win 22 billion euro Istanbul airport tender, Ozge Ozbilgin,weblink Reuters, 3 May 2013, 5 May 2013, Building a new runway at Atatürk Airport was rejected due to the cost involved; environmental concerns have also been raised with respect to the new airport.NEWS, Consortium wins Istanbul airport tender for 22.1 billion euros,weblink Hurriyet Daily News, 3 May 2013, 6 May 2013, Under construction, the new international airport will become the largest airport in the world upon the completion of all four stages of the project, with a capacity to serve 150 million passengers per year.WEB,weblink It will be the biggest airport of the world, 24 January 2013, 24 January 2013,weblink" title="">weblink 29 January 2013, dead, NEWS,weblink Newsweek, Istanbul's New Erdoğan-Backed Airport to Be Named After... Erdoğan, Damien Sharkov, 14 August 2014, 8 March 2016, WEB,weblink Erdogan Airport: Istanbul's Super Hub 'to be Named After Turkey's President-Elect', International Business Times UK, 12 February 2016,

Air pollution from traffic

Air pollution in Turkey is acute in İstanbul with cars, buses and taxis causing frequent urban smog,WEB, Fed up with Istanbul traffic,weblink 28 September 2018, as it is one of the few European cities without a low-emission zone. {{As of|2019}} the city's mean air quality remains of a level so as to affect the heart and lungs of healthy street bystanders during peak traffic hours.NEWS, Understanding Vehicular Pollution – AQI, Harmful Effects and How to Reduce It?,weblink News18, 1 March 2019,

Sister and twin cities

See also






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External links

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Eastern Philosophy
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