1804 – Joseph Priestley, author of the influential History of the Corruptions of Christianity (1782), died. Thomas Jefferson credited the book with his conversion to Unitarianism. However, Priestley is best known for chemistry, in which he made a number of discoveries, including oxygen. Priestley made his inventions available to the public and received no money for any of them. Read more about Joseph Priestley at: www.HarvardSquareLibrary.org – the digital library of Unitarian Universalism.

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