When Was the Calendar Invented A Look at the History and
In which period was the agenda originated?
In what period did the calendar first
devised?
At what time did the timetable come into existence?
In what period was the calendar firstly created?
During what period was the calendar initially envisioned?
In which period did the agenda initially created?
In which period was the calendar generation?
In which period was the timetable come about for the first time?
