In which period was the timetable created?
At what time did the timetable first devised?
In which period did the schedule arise?
In which period did the timetable initially devised?
In
which period was the calendar originally thought up?
In what period did the agenda initially established?
In what period did the timetable generation?
In which period was the agenda emerge for the first time?
Le calendrier mésoaméricain ancien temps partagé
