On Feb 21, 10:38 am, Sam Wormley <sworml...@gmail.com> wrote: > On 2/21/12 7:38 AM, oriel36 wrote: > > > They understood over 2000 years ago that they couldn't use a system of > > continuous 365 days to keep the flooding of the Nile fixed to the > > seasonal points > > And that's because the length of a year is actually 365.242199 solar > days (366.242199 sidereal days). > > That's why 265 solar days doesn't work for calendars!
