Who invented the first calendar WiseAnswers
At what time was the calendar invented?
During what period did the agenda initially established?
In what period did the timetable come into existence?
In what period did the schedule firstly invented?
In which period did the schedule initially conceived?
At what time was the agenda initially introduced?
In what period was the agenda inception?
During what period was the agenda come about for the first time?
- 04/13/01:39
- Mesoamericans Have Been Using a 260Day Ceremonial Calendar
