2017年04月 / Mesoamerican Calendars and Archaeoastronomy
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2017年04月14日(金)
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The Mayan Calendar 101 Calendar At what time did the agenda invented?
At what time was the timetable initially introduced?
At what time was the schedule arise?
During what period was the schedule initially devised?
During what period was the timetable originally thought up?
When did the timetable firstly established?
In which period did the calendar generation?
When was the timetable arise for the first time?