1 janv. 140 av. J.-C. - G: Hipparchus
Description:
Greece: Hipparchus develops the basis of trigonometry. In his work in astronomy, he completes the first scientific star catalog, mapping around 850 starts.
Ajouté au bande de temps:
Date:
1 janv. 140 av. J.-C.
Maintenaint
~ Il y a 2166 ans