13 apr 1473 anni - Copernicus Nicholas Copernicus studied the planets. He believed that planets including earth orbited around the sun. He didn't have a lot of evidence to prove this he just had a lot to prove that Ptolemy's geocentric system was wrong. He wrote a book on his heliocentric system.
Aggiunto al nastro di tempo:
Data:
13 apr 1473 anni
Adesso
~ 552 years ago