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jan 1, 1803 - John Dalton's theory of atomic structure

Description:

John Dalton came up with theory of world structure still taught today in schools; All matter is made of atoms, atoms cannot be created or destroyed, just moved between forms, and that atoms of differing elements combine in different ratios to create chemical compounds.

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4 Oct 2017
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Date:

jan 1, 1803
Now
~ 215 years ago
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