3 ms·
> Could you imagine taking someone from 1960 ...or even 300 BC? > In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of Eart
by selcuka 3y ago
> Could you imagine taking someone from 1960
...or even 300 BC?
> In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of Earth as a physical fact and calculated the Earth's circumference.