Mesoamerican Calendars and Archaeoastronomy In what period did the timetable originated?
During what period was the schedule initially established?
In what period did the agenda emerge?
In what period was the timetable originally invented?
During what period did the agenda originally
envisioned?
During what period was
the agenda initially introduced?
In which period did the agenda creation?
During what period was the calendar arise for the first time?
