Ptolemei (168 BC - 90 BC) - Geocentric conception (1 janv. 168 av. J.-C. – 1 janv. 90 av. J.-C.)
Description:
He developed a theory that explains the planets motion in the sky, based on the geocentric conception (Earth is in the center of the universe, and everything else revolves around it)note: there is no exact date in the course.
Ajouté au bande de temps:
Date:
1 janv. 168 av. J.-C.
1 janv. 90 av. J.-C.
~ 78 years