2017年04月 / The Mesoamerican Calendar Ancient Shared Time Keeping
12345678910111213Maya calendar Wikipedia15161718192021222324252627282930The History of the Calendar Calendar
Calendar Reforms Months Years
2017年04月14日(金)
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In what period did the calendar originated?
In what period was the schedule initially introduced?
During what period was the agenda emerge?
In which period did the calendar originally devised?
In which period was the schedule initially envisioned?
During what period did the calendar initially devised?
At what time did the calendar inception?
In which period was the schedule come about for the first time?