Why did Sumerians use base 60 mathematics?
October 21, 2007 9:55 AM Subscribe
An hour has 60 minutes and a minute has 60 seconds because the Sumerians used a base 60 counting system. Why 60? A plausible explanation is that they could count to 12 with one hand, and to 60 with both hands. Alternate explanations from the MacTutor History of Mathematics archive.
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