Gregorian calendar WikipediaWhen did the schedule invented?
During what period did the timetable initially introduced?
In what period did the timetable emerge?
At what time did the timetable initially devised?
During what period was the schedule firstly thought up?
In which period did the agenda initially created?
In what period was the agenda creation?
At what time was the schedule emerge for the first time?
- 04/13/01:39
- The history of calendars
