Spoken Past

Greek Geography

Articles tagged Greek Geography.

How Eratosthenes Measured the Earth with a Stick and Changed Science Forever

How Eratosthenes Measured the Earth With a Stick

Jan 08-By Caiden Pannell

In 240 BC, Eratosthenes used shadows, geometry, and a 5,000-stadia walk to calculate Earth’s circumference, and came within 2% of modern estimates.