Le calendrier mésoaméricain ancien temps partagéDuring what period was the schedule devised?
At what time was the agenda initially devised?
In what period did the timetable emerge?
In what period did the schedule initially invented?
In which period was the timetable firstly conceived?
In which period was the timetable initially created?
At what time was the agenda creation?
During what period was the agenda come about for the first time?
