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4TH-3TH Century BC
A Greek Astronomer suggest that the sun revolves around the sun -
2nd Century
A Greek astronomer clasified stars accordin to the brightness -
2nd Century
Ptolemy suggest the geocentric teory that says that the Eart was the center of the universe -
1543
Copernico suggest the heliocentric teory -
16 17 Century
An Astronomer Publish Kepler planet -
1609
Galileo ovserves in the night with her telescope the stars -
1687
Newton publish his book The principles of natural Philosophy -
1705
Edmund explaind the laws to Newton -
1718
Discover of Uranus -
1838
Discover that the Earth orbit the sun