Liz Waid and Joshua Leo tell the history of the most popular way people organize time - the Gregorian calendar.
Feb 2022
S1E135 - Kapow's Power of Invention: The Calendar
A calendar is a tool used to measure the passing of time. Now, the people in ancient times based their calendars on the most obvious, and consistent things they could find - the movement of the Sun, Moon, and stars. These first calendars helped people figure out when to plant and ... Show More
10m 10s
Aug 2025
The Ridiculous Origin of the Modern Calendar
The calendar is... ridiculous. Since the earliest days of civilization, humanity has tried to measure the passage of time on Earth through any number of systems. In today's episode, Ben, Noel and Max discover how millennia of trial and error led to the modern Gregorian calendar, ... Show More
39m 30s
Feb 2025
#533 | The Science of Leap Years
Leap years help keep our calendars in sync with Earth's orbit, but have you ever wondered why we need them? In this episode, we explore the history of leap years, covering early human calendars, Julius Caesar's reforms, and the adjustments introduced by Pope Gregory XIII. Why do ... Show More
22m 11s