Terms

4241 B.C.

Egyptian Calendar established by 4241 BCE http://en.wikipedia.org/wiki/Egyptian_calendar
 
Based on this knowledge, they devised a 365-day calendar that seems to have begun in 4236 B.C.E., the earliest recorded year in history. http://webexhibits.org/calendars/calendar-ancient.html
 
 
The earliest known date is 4236 B.C.E., the founding of the Egyptian calendar.
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