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cubit
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{{Short description|Ancient unit of length}}{{other uses}}{{Use dmy dates|date=June 2023}}{{use list-defined references|date=July 2013}}{{Use British English|date=July 2013}}File:Cubit rule Egyptian NK from Liverpool museum.jpg|thumb|Egyptian cubit rod in the Liverpool World MuseumLiverpool World MuseumFile:Measuring ruler-N 1538-IMG 4492-gradient.jpg|thumb|Cubit rod of Maya, 52.3 cm long, 1336â1327 BC (Eighteenth Dynasty)]]The cubit is an ancient unit of length based on the distance from the elbow to the tip of the middle finger.WEB,weblink Definition of CUBIT, 2 February 2024, It was primarily associated with the Sumerians, Egyptians, and Israelites. The term cubit is found in the Bible regarding Noah's Ark, the Ark of the Covenant, the Tabernacle, and Solomon's Temple. The common cubit was divided into 6 palms à 4 fingers = 24 digits.Vitruvian Man. Royal cubits added a palm for 7 palms à 4 fingers = 28 digits.Stephen Skinner, Sacred Geometry â Deciphering The Code (Sterling, 2009) & many other sources. These lengths typically ranged from {{convert|44.4|to|52.92|cm|ftin|frac=16|abbr=on}}, with an ancient Roman cubit being as long as {{convert|120|cm|ftin|0|abbr=on}}.Cubits of various lengths were employed in many parts of the world in antiquity, during the Middle Ages and as recently as early modern times. The term is still used in hedgelaying, the length of the forearm being frequently used to determine the interval between stakes placed within the hedge.WEB, Hart, Sarah, The Green Man,weblink Shropshire Hedgelaying, Oliver Liebscher, 18 May 2017, On the roadside the finish is clean and neat, a living fence of intertwined branches between stakes placed an old cubit (the length of a man's forearm or approximately 18 inches) apart., 17 January 2019,weblink" title="web.archive.org/web/20190117055558weblink">weblink dead, - the content below is remote from Wikipedia
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Etymology
The English word "cubit" comes from the Latin noun "elbow", from the verb "to lie down",Cassell's Latin Dictionary from which also comes the adjective "(wikt:recumbent|recumbent)".Oxford English Dictionary, Second edition, 1989; online version September 2011. s.v. "cubit"Ancient Egyptian royal cubit
The ancient Egyptian royal cubit ({{transliteration|egy|meh niswt}}) is the earliest attested standard measure. Cubit rods were used for the measurement of length. A number of these rods have survived: two are known from the tomb of Maya, the treasurer of the 18th dynasty pharaoh Tutankhamun, in Saqqara; another was found in the tomb of Kha (TT8) in Thebes. Fourteen such rods, including one double cubit rod, were described and compared by Lepsius in 1865. These cubit rods range from {{convert|523.5|to|529.2|mm|in|frac=32|abbr=on}} in length and are divided into seven palms; each palm is divided into four fingers, and the fingers are further subdivided.{| style="width: 175px; float: right; border: 1px solid #BBB; margin: 0.01em 0 0 0.2em;"M23-t:n-D42Hieroglyph of the royal cubit, {{transliteration|egy|meh niswt}} |
Ancient Mesopotamian units of measurement
File:Nippur cubit.JPG|thumb|upright=1.5|The Nippur cubit-rod in the Archeological Museum of IstanbulIstanbulAncient Mesopotamian units of measurement originated in the loosely organized city-states of Early Dynastic Sumer. Each city, kingdom and trade guild had its own standards until the formation of the Akkadian Empire when Sargon of Akkad issued a common standard. This standard was improved by Naram-Sin, but fell into disuse after the Akkadian Empire dissolved. The standard of Naram-Sin was readopted in the Ur III period by the Nanše Hymn which reduced a plethora of multiple standards to a few agreed upon common groupings. Successors to Sumerian civilization including the Babylonians, Assyrians, and Persians continued to use these groupings.The Classical Mesopotamian system formed the basis for Elamite, Hebrew, Urartian, Hurrian, Hittite, Ugaritic, Phoenician, Babylonian, Assyrian, Persian, Arabic, and Islamic metrologies.Conder 1908, p. 87.{{full citation needed|date=July 2018}} The Classical Mesopotamian System also has a proportional relationship, by virtue of standardized commerce, to Bronze Age Harappan and Egyptian metrologies.In 1916, during the last years of the Ottoman Empire and in the middle of World War I, the German assyriologist Eckhard Unger found a copper-alloy bar while excavating at Nippur. The bar dates from {{circa|2650 BCE}} and Unger claimed it was used as a measurement standard. This irregularly formed and irregularly marked graduated rule supposedly defined the Sumerian cubit as about {{convert|518.6|mm|in|frac=32|abbr=on}}.There is some evidence that cubits were used to measure angular separation. The Babylonian Astronomical Diary for 568-567 BCE refers to Jupiter being one cubit behind the elbow of Sagittarius. One cubit measures about 2 degrees.Steele, John M., A Brief Introduction to Astronomy in the Middle East (SAQI, 2008), pp. 41-42. Steele does not elaborate on the relationship between the cubit as a unit of length and a unit of angular separation.Biblical cubit
The standard of the cubit () in different countries and in different ages has varied. This realization led the rabbis of the 2nd century CE to clarify the length of their cubit, saying that the measure of the cubit of which they have spoken "applies to the cubit of middle-size".Mishnah with Maimonides' Commentary (ed. Yosef Qafih), vol. 3, Mossad Harav Kook: Jerusalem 1967, Middot 3:1 [p. 291] (Hebrew). In this case, the requirement is to make use of a standard 6 handbreadths to each cubit,Mishnah (Kelim 17:9â10, pp. 629, note 14 â 630). In the Tosefta (Kelim Baba-Metsia 6:12â13), however, it brings down a second opinion, namely, that of Rabbi Meir, who distinguishes between a medium-sized cubit of 5 handbreadths, used principally for rabbinic measurements in measuring the bare and untilled ground near a vineyard and where there is a prohibition to grow therein seed plants under the laws of Diverse Kinds, and a larger cubit of 6 handbreadths used to measure therewith the altar. Cf. Saul Lieberman, Tosefet Rishonim (part 3), Jerusalem 1939, p. 54, s.v. ×××× ××× ××× ××× ×× ×ת, where he brings down a variant reading of the same Tosefta and where it has 6 handbreadths, instead of 5 handbreadths, for the medium size cubit.Cf. BOOK, Warren, C., Charles Warren, The Ancient Cubit and Our Weights and Measures, The Committee of the Palestine Exploration Fund, 1903, London, 4,weblink en, 752584387, and which handbreadth was not to be confused with an outstretched palm, but rather one that was clenched and which handbreadth has the standard width of 4 fingerbreadths (each fingerbreadth being equivalent to the width of a thumb, about 2.25 cm).Tosefta (Kelim Baba-Metsia 6:12â13)Mishnah with Maimonides' Commentary (ed. Yosef Qafih), vol. 1, Mossad Harav Kook: Jerusalem 1963, Kila'im 6:6 [p. 127] (Hebrew). This puts the handbreadth at roughly {{convert|9|cm|in|frac=2|abbr=on}}, and 6 handbreadths (1 cubit) at {{convert|54|cm|in|frac=2|abbr=on}}. Epiphanius of Salamis, in his treatise On Weights and Measures, describes how it was customary, in his day, to take the measurement of the biblical cubit: "The cubit is a measure, but it is taken from the measure of the forearm. For the part from the elbow to the wrist and the palm of the hand is called the cubit, the middle finger of the cubit measure being also extended at the same time and there being added below (it) the span, that is, of the hand, taken all together."Epiphanius' Treatise on Weights and Measures â the Syriac Version (ed. James Elmer Dean, The University of Chicago Press: Chicago 1935, p. 69.Rabbi Avraham Chaim Naeh put the linear measurement of a cubit at {{convert|48|cm|in|frac=2|abbr=on}}.Abraham Haim Noe, Sefer Ḳuntres ha-ShiÊ»urim (Abridged edition from ShiÊ»urei Torah), Jerusalem 1943, p. 17 (section 20). Avrohom Yeshaya Karelitz (the "Chazon Ish"), dissenting, put the length of a cubit at {{convert|57.6|cm|in|frac=16|abbr=on}}.Chazon Ish, Orach Chaim 39:14.Rabbi and philosopher Maimonides, following the Talmud, makes a distinction between the cubit of 6 handbreadths used in ordinary measurements, and the cubit of 5 handbreadths used in measuring the Golden Altar, the base of the altar of burnt offerings, its circuit and the horns of the altar.Ancient Greece
In ancient Greek units of measurement, the standard forearm cubit {{nowrap|()}} measured approximately {{nowrap|{{convert|460|mm|in|frac=2|abbr=on}}.}} The short forearm cubit {{nowrap|( {{transliteration|grc|pygmÄ}}, lit. "fist"),}} from the knuckle of the middle finger (i.e., fist clenched) to the elbow, measured approximately {{nowrap|{{convert|340|mm|in|frac=2|abbr=on}}}}.{{citation|title=Anastylosis at Machaerus|first=Gyozo|last=Vörös|magazine=Biblical Archaeology Review|year=2015|volume=41|issue=1, Jan/Feb 2015|page=56}}Ancient Rome
In ancient Rome, according to Vitruvius, a cubit was equal to {{frac|1|1|2}} Roman feet or 6 palm widths (approximately {{convert|444|mm|in|frac=16|abbr=on|disp=or}}).H. Arthur Klein (1974). The Science of Measurement: A Historical Survey. New York: Dover. {{ISBN|9780486258393}}. p. 68. A 120-centimetre cubit (approximately four feet long), called the Roman ulna, was common in the Roman empire, which cubit was measured from the fingers of the outstretched arm opposite the man's hip.JOURNAL, Stone, Mark H., The Cubit: A History and Measurement Commentary (Review Article), Journal of Anthropology, 30 January 2014, 2014, 489757 [4], 10.1155/2014/489757, en, Kaushik Bose, free, ; also, BOOK, Grant, James, Thoughts on the Origin and Descent of the Gael: With an Account of the Picts, Caledonians, and Scots; and Observations Relative to the Authenticity of the Poems of Ossian, 1814, For A. Constable and Company, Edinburgh, 137,weblink 1 January 2018, en, Solinus, cap. 45, uses ulna for cubitus, where Pliny speaks of a crocodile of 22 cubits long. Solinus expresses it by so many ulnae, and Julius Pollux uses both words for the same... they call a cubitus an ulna., withJOURNAL, Ozdural, Alpay, NecipoÄlu, Gülru, Sinan's Arsin: A Survey of Ottoman Architectural Metrology, Muqarnas: An Annual on the Visual Culture of the Islamic World, 1998, 15, 109, Leiden, The Netherlands, en, 0732-2992, ... Roman ulna of four feet..., ISBN 90 04 11084-4,Islamic world
In the Islamic world, the cubit ({{transliteration|ar|dhirÄÊ¿}}) had a similar origin, being originally defined as the arm from the elbow to the tip of the middle finger.{{EI2 | last = Hinz | first = W. | title = DhirÄÊ¿ | volume = 2 | pages = 231â232}} Several different cubit lengths were current in the medieval Islamic world for the unit of length, ranging from {{convert|48.25-145.6|cm|in|abbr=on|frac=32}}, and in turn the {{transliteration|ar|dhirÄÊ¿}} was commonly subdivided into six handsbreadths ({{transliteration|ar|qabá¸a}}), and each handsbreadth into four fingerbreadths ({{transliteration|ar|aá¹£baÊ¿}}). The most commonly used definitions were:- the legal cubit ({{transliteration|ar|al-dhirÄÊ¿ al-sharÊ¿iyya}}), also known as the hand cubit ({{transliteration|ar|al-dhirÄÊ¿ al-yad}}), cubit of Yusuf ({{transliteration|ar|al-dhirÄÊ¿ al-YÅ«sufiyya}}, named after the 8th-century {{transliteration|ar|qÄá¸Ä«}} Abu Yusuf), postal cubit ({{transliteration|ar|al-dhirÄÊ¿ al-barÄ«d}}), "freed" cubit ({{transliteration|ar|al-dhirÄÊ¿ al-mursala}}) and thread cubit ({{transliteration|ar|al-dhirÄÊ¿ al-ghazl}}). It measured {{convert|49.8|cm|in|frac=16|abbr=on}}, although in the Abbasid Caliphate it measured {{convert|48.25|cm|in|frac=16|abbr=on}}, possibly as a result of reforms of Caliph al-Ma'mun ({{reign|813|833}}).
- the black cubit ({{transliteration|ar|al-dhirÄÊ¿ al-sawdÄʾ}}), adopted in the Abbasid period and fixed by the measure used in the Nilometer on Rawda Island at {{convert|54.04|cm|in|frac=16|abbr=on}}. It is also known as the common cubit ({{transliteration|ar|al-dhirÄÊ¿ al-Ê¿Ämma}}), sack-cloth cubit ({{transliteration|ar|al-dhirÄÊ¿ al-kirbÄs}}), and was the most commonly used in the Maghreb and Islamic Spain under the name {{transliteration|ar|al-dhirÄÊ¿ al-RashshÄshiyya}}.
- the king's cubit ({{transliteration|ar|al-dhirÄÊ¿ al-malik}}), inherited from the Sassanid Persians. It measured eight {{transliteration|ar|qabá¸a}} for a total of {{convert|66.5|cm|in|frac=16|abbr=on}} on average. It was this measure used by Ziyad ibn Abihi for his survey of Iraq, and is hence also known as Ziyadi cubit ({{transliteration|ar|al-dhirÄÊ¿ al-ZiyÄdiyya}}) or survey cubit ({{transliteration|ar|al-dhirÄÊ¿ al-misÄḥaʾ}}). From Caliph al-Mansur ({{reign|754|775}}) it was also known as the Hashemite cubit ({{transliteration|ar|al-dhirÄÊ¿ al-HÄshimiyya}}). Other identical measures were the work cubit ({{transliteration|ar|al-dhirÄÊ¿ al-Ê¿amal}}) and likely also the {{transliteration|ar|al-dhirÄÊ¿ al-hindÄsa}}, which measures {{convert|65.6|cm|in|frac=16|abbr=on}}.
- the cloth cubit, which fluctuated widely according to region: the Egyptian cubit ({{transliteration|ar|al-dhirÄÊ¿ al-bazz}} or {{transliteration|ar|al-dhirÄÊ¿ al-baladiyya}}) measured {{convert|58.15|cm|in|frac=32|abbr=on}}, that of Damascus {{convert|63|cm|in|frac=2|abbr=on}}, that of Aleppo {{convert|67.7|cm|in|frac=16|abbr=on}}, that of Baghdad {{convert|82.9|cm|in|frac=16|abbr=on}}, and that of Istanbul {{convert|68.6|cm|in|frac=16|abbr=on}}.
Other systems
Other measurements based on the length of the forearm include some lengths of ell, the Russian lokot (), the Chinese {{transliteration|zh|cat=no|chi}}, the Japanese {{transliteration|ja|cat=no|shaku}}, the Indian , the Thai , the Malay , the Tamil , the Telugu {{transliteration|te|moora}} (), the Khmer {{transliteration|km|hat}}, and the Tibetan {{transliteration|bo|khru}} ().Rigpa Wiki, accessed January 2022, "weblink"Cubit arm in heraldry
File:Complete Guide to Heraldry Fig268.png|thumb|upright|A heraldic cubit arm, dexter, vested and erect]]A cubit arm in heraldry may be dexter or sinister. It may be vested (with a sleeve) and may be shown in various positions, most commonly erect, but also fesswise (horizontal), bendwise (diagonal) and is often shown grasping objects.BOOK, Allcock, Hubert, Heraldic design : its origins, ancient forms, and modern usage, with over 500 illustrations, 2003, Dover Publications, Mineola, N.Y., 048642975X, 24,weblink It is most often used erect as a crest, for example by the families of Poyntz of Iron Acton, Rolle of Stevenstone and Turton.See also
- History of measurement
- List of obsolete units of measurement
- System of measurement
- Unit of measurement
References
Bibliography
- BOOK, The Encyclopaedia of Ancient Egyptian Architecture, Dieter, Arnold, 2003, Taurus, 1-86064-465-1, registration,weblink
- {{citation |last=Hirsch |first=Emil G. |author2=Immanuel Benzinger |author3=Joseph Jacobs |author4=Jacob Zallel Lauterbach |date=1906 |display-authors=1 |ref={{harvid|Hirsch & al.|1906}} |contribution=Weights and Measures |contribution-url=http://jewishencyclopedia.com/articles/14821-weights-and-measures |url=http://jewishencyclopedia.com/ |title=The Jewish Encyclopedia |volume=XII |pages=483 ff |editor=Cyrus Adler |editor2=Gotthard Deutsch |editor3=Louis Ginzberg |editor4=Richard Gottheil |editor5=Joseph Jacobs |editor6=Marcus Jastrow |editor7=Morris Jastrow, Jr. |editor8=Kaufmann Kohler |editor9=Frederick de Sola Mendes |editor10=Crawford H. Toy |editor11=Isidore Singer |display-editors=0 }}.
- Petrie, Sir Flinders (1881). Pyramids and Temples of Gizeh.
- Stone, Mark H., "The Cubit: A History and Measurement Commentary", Journal of Anthropology {{doi|10.1155/2014/489757}}, 2014
External links
{{Collier's poster|Cubit}}- {{commons category-inline|Cubit arms}}
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