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sep 26, 1869 - Dmitri Mendeleev organizes the elements into the periodic table.

Description:

Dmitri Mendeleev created the periodic table in 1869. Mendeleev organized the elements according to their atomic weight, but also according to wether the elements were gasses, metals, nonmetals, etc. This was revolutionary.

Added to timeline:

28 Sep 2018
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Date:

sep 26, 1869
Now
~ 156 years ago

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