In which period did the schedule invented?
In which period was the agenda first devised?
At what time did the
timetable arise?
In what period did the agenda originally created?
During what period did the calendar initially envisioned?
In which period did the timetable firstly introduced?
In which period was the agenda creation?
In what period was the agenda emerge for the first time?
The History Of Advent Calendars The Fact Site
