During what period did the agenda created?
At what time was the schedule initially devised?
At what time did the agenda come into existence?
In which period did the agenda firstly devised?
During what period did the calendar firstly conceived?
When did the timetable initially established?
At what time was the calendar generation?
During what period was the agenda emerge for the first time?
- 04/13/01:39
- The History of the Advent Calendar I Oxford Open Learning
