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140
Ptolemy proposed the Geocentric Model/Theory date
The geocentric model of Plato could not explain the retrograde motion of the planets. Around 140 A.D. Ptolemy proposed his refined geocentric model. In the Ptolemaic universe, a planet moves in a small circle called an epicycle, and the center of the epicycle moves along a larger circle around the Earth. -
1543
Nicolaus Copernicus publishes On The Revolutions of Heavenly Spheres
Nicolaus Copernicus publishes On The Revolutions of Heavenly Spheres in 1543.The book is about seminal work on the heliocentric theory. -
1564
Andreas Vesalius publishes On the Fabric of the Human Body
De humani corporis fabrica libri septem (Latin for "On the fabric of the human body in seven books") is a set of books on human anatomy written by Andreas Vesalius (1514–1564) and published in 1543. ... Vesalius's magnum opus presents a careful examination of the organs and the complete structure of the human body. -
Galileo's experiment at the Leaning Tower of Pisa
Between 1589–92,[1] the Italian scientist Galileo Galilei (then professor of mathematics at the University of Pisa) 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, according to a biography by Galileo's pupil Vincenzo Viviani, composed in 1654 and published in 1717. -
Johannes Kepler published his Laws of Planetary Motion
Kepler's laws of planetary motion, in astronomy and classical physics, laws describing the motions of the planets in the solar system. ... Kepler himself never numbered these laws or specially distinguished them from his other discoveries. -
Robert Hooke discovers cells
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name.