In what period was the timetable created?
When did the timetable initially devised?
At what time was the timetable arise?
At what time did the calendar initially created?
During what period was
the timetable originally thought up?
At what time did the timetable initially created?
During what period was the agenda inception?
When was the timetable come about for the first time?
- 04/13/01:39
- History of calendars Wikipedia
