A Biblical unit of measurement, the length of a man's forearm. Believed to commonly be between approximately 17 and 20 inches.<ref>http://www.keyway.ca/htm2002/20020226.htm</ref>
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The '''cubit''' was a unit of measurement for length used in ancient middle eastern and other civilisations.<ref>There are mentions of English, Chinese, and Mexican Aztec cubits. Lovett 2006, p. 74.</ref>
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For further details on the cubit and on other Biblical units of length, see [[Biblical units of measure]].
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It was nominally the length of a man's forearm, but various different cubits were in use, particularly the ''common cubit'' and the ''royal cubit'' or ''long cubit''.<ref>Lovett 2006; Blank</ref>
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The common cubit was around 450mm (around 18 inches), and the royal cubit was around 515mm (around 20 inches).<ref>Lovett 2006.</ref>
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For further details on the cubit and on other units of length used in the [[Bible]], see [[Biblical units of measure]].
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== Source ==
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* Blank, Wayne, [http://www.keyway.ca/htm2002/20020226.htm The Forearm]
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* Lovett, Tim, "Which Cubit for Noah's Ark", ''Journal of Creation'' 20(3) 2006 pp. 71-77.