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Nicolaus Copernicus
Books by Nicolaus Copernicus
On the Revolutions of Heavenly Spheres
The Ptolemaic system of the universe, with the earth at the center, had held sway since antiquity as authoritative in philosophy, science, and church teaching. Following his observations of the heavenly bodies, Nicolaus Copernicus (1473-1543) abandoned the geocentric system for a heliocentric mod...