On this day in 240 BC, ancient Greek scholar Eratosthenes estimated the circumference of the Earth.

<p>On this day in 240 BC, ancient Greek scholar Eratosthenes estimated the circumference of the Earth.</p>

From the desk of “Stuff You Missed in History Class,” “This Day in History Class” quickly recounts a tidbit from today’s events in history.

This Day in History Class

Eratosthenes calculates the Earth's circumference using a stick - June 19th, 240 BC

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/0fc11ab0-9e32-429b-8604-b19400c5f6a4/transcript