In what period was the schedule originated?
At what time did the agenda initially established?
In what period was the schedule come into
existence?
In what period did the timetable originally invented?
In which period did the timetable firstly envisioned?
At what time was the agenda firstly created?
In which period was the timetable
inception?
When was the agenda emerge for the first time?
- 04/13/01:39
- The Calendar System
