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143 BCE
Ptolemy proposes the Geocentric Model/Theory
The geocentric model served as the predominant description of the cosmos in many ancient civilizations such as those of Aristotle and Ptolemy. -
1543
Nicolaus Copernicus publishes On The Revolutions of Heavenly Spheres
Its about the solar systems and how there supposed to be lined up and how they move around the sun. -
Johannes Kepler published his Laws of Planetary Motion
Its about Keplers 3 laws to the Planetary Motion and how the planets should move around the sun. -
Galileo's experiment at the Leaning Tower of Pisa
Galileo is said to have dropped two spheres of different masses from the Leaning Tower of Pisa to demonstrate that their time of descent was independent of their mass.