Editing Cubit (section)

==Ancient Rome==
In [[ancient Rome]], according to [[Vitruvius]], a cubit was equal to {{frac|1|1|2}} [[Ancient Roman units of measurement#Length|Roman feet]] or 6 palm widths (approximately {{convert|444|mm|in|frac=16|abbr=on|disp=or}}).<ref name="klein">H. Arthur Klein (1974). [https://books.google.com/books?id=tYZGAAAAYAAJ ''The Science of Measurement: A Historical Survey'']. New York: Dover. {{ISBN|9780486258393}}. p. 68.</ref> 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.<ref>{{cite journal|last1=Stone|first1=Mark H.|title=The Cubit: A History and Measurement Commentary (Review Article)|journal=Journal of Anthropology|date=30 January 2014|volume= 2014 |page=489757 [4]|doi=10.1155/2014/489757|language=en|editor=Kaushik Bose|doi-access=free}}</ref><sup>; also, </sup><ref>{{cite book|last1=Grant|first1=James|title=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|date=1814|publisher=For A. Constable and Company|location=Edinburgh|page=[https://archive.org/details/thoughtsonorigin01gran_0/page/137 137]|url=https://archive.org/details/thoughtsonorigin01gran_0|access-date=1 January 2018|language=en|quote=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.}}</ref><sup>with</sup><ref>{{cite journal|last1=Ozdural|first1=Alpay|editor1-last=Necipoğlu|editor1-first=Gülru|title=Sinan's Arsin: A Survey of Ottoman Architectural Metrology|journal=Muqarnas: An Annual on the Visual Culture of the Islamic World|date=1998|volume= 15|page=109|location=Leiden, The Netherlands|language=en|issn=0732-2992|quote=... Roman ulna of four feet...|postscript=ISBN 90 04 11084-4}}</ref>