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Ptolemy proposes the Geocentric Model/Theory
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Nicolaus Copernicus publishes On The Revolutions of Heavenly Spheres
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Andreas Vesalius publishes On the Fabric of the Human Body
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Galileo's experiment at the Leaning Tower of Pisa
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Francis Bacon publishes The Advancement of Learning
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Johannes Kepler published his Laws of Planetary Motion
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Robert Hooke discovers cells
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Antonie van Leeuwenhoek discovers bacteria
