John W Kennedy wrote:
On May 24, 2008, at 7:28 PM, Daniel Carrera wrote:
The 12-month year comes from the Egyptians, but I don't know where the
Egyptians got it from. My first guess would be because a month is
about the same as a moon cycle, but the problem with that is that a
13-month calendar would fit a lot better (13 months of 28 days is only
1 day less than a year).
But a lunar month isn't 28 days -- it's about 29 1/2.
True. I was thinking of the Orbital period. But because the Earth moves
around the sun, it takes longer than 1 moon orbit for the moon to appear
in the same place on the sky.
Daniel.
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