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140
Ptolemy proposes the Geocentric Model/Theory
Greek philosopher Ptolemy creates a geocentric (earth-centered) theory that the Earth is the center of the universe. -
1543
Nicolaus Copernicus publishes On The Revolutions of Heavenly Spheres
Nicolaus Copernicus publishes his book about how the planets revolved around the sun. -
1543
Andreas Vesalius publishes On the Fabric of the Human Body
Andreas Vesalius publishes his book about the human body. -
Galileo's experiment at the Leaning Tower of Pisa
Galileo tested his theory that two objects with different masses will fall at the same speed at the Leaning Tower of Pisa in Italy. -
Francis Bacon publishes The Advancement of Learning
The Advancement of Learning is about learning about science and the current state of knowledge. -
Johannes Kepler published his Laws of Planetary Motion
Johannes Kepler publishes his theory that all planets move in ellipses. -
Robert Hooke discovers cells
Robert Hooke discovered cells and named them after the rooms monks lived in. -
Antoine van Leeuwenhoek discovers bacteria
In 1676, Antonie van Leeuwenhoek looks at water closely and finds tiny organisms in the water.
