2017年04月 / Counting down to Christmas A history of the Advent Calendar
12345678910111213Calendar Roman Ancient Lunar 15161718192021222324252627282930Exploring the history and evolution of Advent calendars NPR
The History Of Advent Calendars The Fact Site
2017年04月14日(金)
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When did the calendar created?
At what time was the calendar initially established?
At what time was the timetable come into existence?
In which period did the timetable initially devised?
During what period was the schedule initially envisioned?
During what period did the schedule initially introduced?
At what time was the timetable creation?
In what period did the timetable come about for the first time?