5 janv. 200 av. J.-C. - Invention of Astrolabe
Description:
An ancient device used to determine the position of the user and the time of day. The positions of the sun and stars in the sky allowed explorers to determine where they were in relation to the equator.Ajouté au bande de temps:
Date:
5 janv. 200 av. J.-C.
Maintenaint
~ Il y a 2227 ans