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100
Aristarchus of Samos
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100
Eratosthenes
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100
Aristotle
Aristotle was born 384 BC. Using the belief of the Geocentric model, Aristotle argued that the universe is spherical and finite. Spherical, because that is the most perfect shape; finite, because it has a center, viz. the center of the earth, and a body with a center cannot be infinite. He believed that the earth, too, is a sphere. -
101
Hipparchus
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103
Ptolemy
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Feb 19, 1473
Nicolaus Copernicus
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Dec 14, 1546
Tycho Brahe
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Feb 15, 1564
Galileo Galilei
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Dec 27, 1571
Johannes Kepler
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Isaac Newton
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Henrietta Leavitt
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Albert Einstein
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Alexander Friedmann
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Edwin Hubble