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 | How to Count to 12 on One Hand | | by Gary Wallace | | published on Feb 8, 2009 | By using the bones of the fingers as separate markers it is possible to count up to 12 on one hand. This method was used by, among others, the Sumerians and Babylonians. |
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http://www.scienceray.com/Mathematics/Applied-Mathematics/Why-are-There-60-Minutes-in-an-Hour.516929