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jul 15, 1743 - Lavoisier

Description:

Date: 1743 - 1794

Country: France

Contribution: He created the Law of Conservation of matter, which states that matter is not lost nor gained during or after a chemical reaction. He debunked the phlogiston theory (Which says that phlogiston was lost during combustion).

Added to timeline:

20 Oct 2017
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Date:

jul 15, 1743
Now
~ 283 years ago

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