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200
Ptolemy
Ptolemy was born in 90 AD. -
200
Ptolemy's death
Ptolemy was the person who first thought of the Geocentric Theory. Some people beleivred Ptolemy because he was an astronomer. He thought of the Geocentric Theory because 1. The stars would move every night. 2. people wouldn't feel the Earth move. -
Feb 19, 1473
Nicholas Copernicus
Copernicus was born. (found skull of Copernicus and using computers were able to generate this picture). -
May 24, 1543
Death Of Copernicus
Copernicus was the first person to publish the heliocentric theory even though he didn't want to publish his thoughts. He got alot of his ideas from Aris tarchus of Samos. -
Feb 15, 1564
Galileo Galilei
Galileo was born. -
Dec 27, 1571
Johannes Kepler
Kepler was born. -
Death Of Kepler
Proved the Earth rotates around the sun and said rotated on it's axis. Also, he said the planets rotated Earth in a elliptical obit which means the planets don't rotate always in a circle around the sun, but in an oval. -
Galileo's death
Galileo is known for improving the telescope so it could mgnify 3x or even 30x. With the telescope he discovered 4 of Jupiter's moons. He also supported Copernicus's Heliocentric Theory. -
Sir Isaac Newton
Isaac Newton was born. -
Death Of Isaac Newton
Isaac Newton is known for his tree laws of motion/physics. The first one (An object at rest will stay in rest unless aforce is aplyed on it and an object in motion will stay in motion unless stoped by an opposing force.)the universal law of gravity and inertia is probably the most well known.
