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