2.850 days Vs 2.867 days. Is this an indication of a slightly inaccurate observation 4500 years ago, or an indication of a longer period today?
The latter.
Possibly relevant sidebar:
In the shadow of the Moon
New Scientist | 30 January 1999 | editors
Posted on 08/31/2004 8:42:25 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/chat/1203912/posts