Spheres of the Ptolemaic System
A diagram showing the order of the universe as expounded by Ptolemy. Its basic concept surmises that the Earth is the center of our universe. This diagram was widely accepted as fact for fourteen centuries until it was discredited.
John H. Finley ed. Nelson's Perpetual Loose-Leaf Encyclopaedia (vol. 10) (New York, NY: Thomas Nelson and Sons, 1917) 84