During what
period was the timetable invented?
At what time did the timetable initially introduced?
In what period did the timetable come into existence?
At what time was the timetable originally created?
In which period did the calendar firstly envisioned?
At what time was the schedule
initially established?
In which period did the timetable generation?
At what time was the timetable come about for the first time?
Who invented the first calendar WiseAnswers
