In which period did the timetable invented?
When did the calendar first devised?
In what period did the calendar come into existence?
At what time was the timetable initially created?
During what period did the calendar originally envisioned?
When was the timetable initially established?
In what period did the agenda generation?
When did the calendar come about for the first time?
- 04/13/01:39
- The Mayan Calendar 101 Calendar
