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Everyone thought that the earth and sun and moon and stars were the only thing in the universe and nobody knew a thing about science.
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Democritus introduces the idea of the atom, a little tiny ball that you cant see, and he thought that these little balls made up everything in the universe.
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Plato makes the word element
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Artistole introduced the idea of the four elements Earth, Water, Fire, and Air and buried Democrituses atom theory for 2 whole milleniums
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Everyone thought that Democritus's atom theory was rubbish and they thought he was crazy
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Democritus's followers work harder to prove his theory right and makes a prediction of what an atom looks like.
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Medeleev was born
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only 5 years after Jon Newlands made his law of octaves, Mendeleev made him a periodic table
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Medeleev dies
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now scientist have very cool technology that can help them actually see atoms and split them
