But until 400 years ago, men thought the shifting position of the Sun in the sky revealed the Sun's movement around the Earth; and on this assumption ancient astronomers developed a perfectly practical system of celestial mechanics which enabled them to predict with great accuracy all the major phenomena of the heavens. Their supposition was a natural one, for we can't feel our motion through space; nor has any physical experiment ever proved that the Earth is actually in motion. And though all the other planets, stars, galaxies, and moving systems in the universe are ceaselessly, restlessly changing position, their movements are observable only with respect to one another.
Lincoln Barnett, (from his book) The Universe And Dr. Einstein, page 73, published in 1949.
This video will educate as well as amaze you. It starts a little slow, but the main speaker gets it going. Enjoy!