The Mesoamerican Calendar Ancient Shared Time KeepingAt what time did the timetable created?
In which period
was the calendar initially devised?
During what period was the timetable come into existence?
During what period did the agenda firstly devised?
In which period was the schedule initially conceived?
At what time was the agenda firstly established?
At what time was the schedule inception?
At what time did the calendar arise for the first time?
