Geocentricism, those were the good old days, back when we thought everything revolved around us! Under the geocentric model, we believed that everything, from the Sun, to the moon, planets and stars, all revolved around the Earth. This sounds preposterous to us now, however we were convinced of this right up until Nicolaus Copernicus came up with the idea that the Earth actually orbited around the Sun instead. He came up with this new found theory in 1543 and back then this was a revolutionary idea. It wasn’t accepted until the 1600s, when Johannes Kepler published his famous “Laws of Motion,” which supported the heliocentric model.