During what period was the timetable created?
At what time did the agenda initially developed?
During what
period was the timetable come into existence?
In which period was the timetable firstly created?
During what period was the timetable initially thought up?
In what period was the agenda firstly introduced?
During what period was the timetable inception?
In what period was the timetable come about for the first time?
When Was the Calendar Invented A Look at the History and
