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Democritus
460 BCChrist was born
4 BCColumbus sailed the ocean blue
1492The Mona Lisa was painted
1503The beginning of George Washington's presidency
April 30, 1789The beginning of the American Civil War
April 12, 1861Mendeleev's Periodic Table
1869Death of Napoleon
September 3, 19893Thompson’s CRT, Discovery of Electrons, and Atomic Model
1897Dalton’s Atomic Theory and Atomic Model
1803Discovery of Protons
1911Rutherford’s Gold Foil Experiment and Atomic Model
began experimenting in 1911Sinking of the titanic
April 14-15, 1912Moseley’s Periodic Table
1913Bohr’s Atomic Model
1913Women Gained the Right to Vote
August 18, 1920Death of Houdini
October 31, 1926
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