47 - Calendar

Published: May 4, 2023, 4 p.m.

How did Romans use calendars for political purposes? When do we have leap years? Where do the names of the months come from?

Let's learn about the weirdly fascinating history of the Gregorian calendar, and what can go wrong when calendars aren't made accurately!

Knuckle method for figuring out if a month has 30 or 31 days

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