James Ferguson, Proof Against the Ptolemaic System, 1756

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Keywords: 1750s, 1756, 18th, astronomy, celestial, century, colorized, earth, enhanced, explained, famous, ferguson, geocentric, globe, history, isaac, james, map, model, motion, newton‚, newton‚Äô, picycles, planetary, principles, proof, ptolemaic, science, sir, sun, system