differences between Heliocentrism and Geocentrism in just one GIF

http://malinchristersson.tumblr.com/post/136782569818/the-difference-between-an-easy-model-and-a

PS: The blue ball is, obviously, the Earth

Here you have a timeline with the history of both theories

extracted from  http://www.malinc.se/math/trigonometry/geocentrismen.php