When did the agenda devised?
During what period was the
agenda first devised?
At what time was the schedule come into existence?
At what time did the calendar firstly invented?
In which period did
the agenda originally imagined?
At what time was the agenda initially established?
At what time was the calendar creation?
In which period did the calendar emerge for the first time?
- 04/13/01:39
- Counting down to Christmas A history of the Advent Calendar
