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The Book of Numbers The Book of Numbers by John H. Conway
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“It is because the ancients made astronomical calculations in base 60 that we still use this system for measuring time, dividing an hour into 60 minutes, and a minute into 60 seconds. In its path through the heavens, the sun takes roughly 360 days (actually 365.242199) to describe a complete circle, so it seems that the Babylonians divided a complete circle into 360 degrees (°).”
John H. Conway, The Book of Numbers