A Strange History of the Calendar
11:00
The History of U.S. Presidential Elections
16:19
God's Calendar Vs. Man's Calendar
9:11
The Reason We Have 7 Days in a Week
13:04
Why Do Some Countries Use Different Calendars?
10:03
A Brief History of Timekeeping | How Humans Began Telling Time | EXPLORE MODE
27:13
The Longest Year in Human History (46 B.C.E.)
58:19
A brief History of the Calendar and Time Keeping
14:11