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Aug 29, 1477
Ptolomy printed the first engraved map in Bolonga. (wikipedia)
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Aug 28, 1500
Aristotle writes about the four different elements of the universe: Earth, fire, water, and air. (356)
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Aug 28, 1543
Nicolaus Copernicus published "On the Revolutions of the Heavenly Spheres" (wikipedia)
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Aug 29, 1575
"Tycho Brahe made extensive and more accurate naked eye observations of the planets in the late 16th century. These became the basic data for Kepler's studies." (wikipedia)
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Galileo observes the night sky throught a telescope that he built himself. (356)
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"Kepler published the first two of his three laws of planetary motion." (Wikipedia)
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"Harvey demonstrated that blood circulates, using dissections and other experimental techniques." (wikipedia)
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"published Novum Organum in 1620, which outlined a new system of logic based on the process of reduction, which he offered as an improvement over Aristotle's philosophical process of syllogism. This contributed to the development of what became known as t
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Rene Descartes publsihed the Discourse on Method, that proves a straight line is the shortest distance between points. (361)
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Newton printed the Mathematical Principles of Natural Philosophy. (356)
