Eratosthenes- The early Greeks knew the Earth was a sphere based on the shadow of Earth on the Moon during lunar eclipses. Eratosthenes proceeded to use this information to measure the circumference of Earth. (1 janv. 220 av. J.-C. – 1 déc. 220 av. J.-C.)
Ajouté au bande de temps:
Date:
1 janv. 220 av. J.-C.
1 déc. 220 av. J.-C.
~ 11 months