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I think it more likely that both the 360-day year and the base-60 numbering system came from a common ancestor (the Babylonian's study of astronomy). Perhaps th

I think it more likely that both the 360-day year and the base-60 numbering system came from a common ancestor (the Babylonian's study of astronomy). Perhaps they just took the lunar year and "rounded" it to correspond more consistently with their view of the stars, which put them on the path to both things.

simiones 7y ago
The (approximately) 360-day year is a property of nature (the ratio between the Earth's revolution speed and the Earth's rotation speed is approximately 360 if expressed in base 10). It is a discovered number, not invented/chosen. It is possible that the base-60 numbering comes from this basic astronomical observation, or they may be mostly unrelated.