How Did People Count Years Before BC and AD MediumDuring what period did the timetable
originated?
At what time did the agenda initially developed?
In what period was the timetable arise?
During what period did the agenda originally devised?
In which period did the calendar originally conceived?
During what period did the agenda initially introduced?
In what period was the timetable generation?
In which period was the agenda come about for the first time?
