Joseph Priestley

English theologian, chemist, educator, and political theorist (1733-1804)

Joseph Priestley (13 March 1733 – 8 February 1804) was an English chemist, philosopher, clergyman, and teacher. He is known as the discoverer of oxygen.[1] He was a Unitarian.[2]

Joseph Priestley
JPriestley Portrait.jpg
Priestley by William Artaud
Born13 March 1733
Fieldhead, Yorkshire, England
Died8 February 1804
Northumberland, Pennsylvania

On 1 August 1774, Priestly identified oxygen in his laboratory at Bowood House in Wiltshire, England.[3]


  1. Antoine Lavoisier and Carl Wilhelm Scheele Carl Wilhelm Scheele also have a claim to the discovery of oxygen. See Kuhn, Thomas. (1996). The Structure of Scientific Revolutions, pp. 53–60.
  2. "Joseph Priestley". Archived from the original on July 19, 2013. Retrieved November 30, 2013.
  3. American Chemical Society (ACS), "Joseph Priestley: Discoverer of Oxygen"; retrieved 2012-5-23.

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