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C.D. Warner, et al., comp.
The Library of the World’s Best Literature. An Anthology in Thirty Volumes. 1917.

Johannes Kepler (1571–1630)

Kepler, Johannes (kep’ler). An eminent German astronomer; born at Weil, Würtemberg, Dec. 27, 1571; died at Ratisbon, Nov. 15, 1630. He was the discoverer of the laws of planetary motion, famous as “Kepler’s laws,” which revolutionized previous theories of the position of humanity, and formed the foundations for Newton’s subsequent labors and modern astronomy. His great work was the ‘New Astronomy with Commentaries on the Motions of Mars’ (1609). He also completed (1627) the famous “Rudolphine Tables” of Tycho Brahe, the basis of astronomy for the next hundred years.