Mesoamericans Have Been Using a 260Day Ceremonial Calendar
In what period was the agenda invented?
At what time was the calendar initially devised?
At what time did the schedule come into existence?
When was the timetable originally created?
During what period did the schedule firstly conceived?
In which period was the
calendar firstly devised?
At what time did the calendar creation?
At what time did the timetable arise for the first time?
