How Did People Count Years Before BC and AD MediumIn what period was the timetable devised?
In which period did the agenda initially devised?
In what period did the timetable come into existence?
At what time did the timetable initially devised?
During what period was the timetable firstly
thought up?
In which period did the calendar initially established?
In what period did the schedule generation?
In which period was the agenda come about for the first time?
