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jan 1, 1774 - Discovery of Oxygen (1774)

Description:

Joseph Priestley heated mercuric oxide until it burned, producing mercury and a gas that was easy to breathe. Priestley had discovered oxygen, but he called the gas "dephlogisticated air."

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Atomic Theory Scientists

ByDorian Williams
7 Nov 2018
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Date:

jan 1, 1774
Now
~ 251 years ago
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