William Pinkney, American politician and diplomat, 7th United States Attorney General (b. 1764)
William Pinkney (March 17, 1764 – February 25, 1822) was an American statesman and diplomat, and was appointed the seventh U.S. Attorney General by President James Madison.

1822Feb, 25
William Pinkney
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Events on 1822
- 13Jan
First National Assembly at Epidaurus
The design of the Greek flag is adopted by the First National Assembly at Epidaurus. - 14Jun
Difference engine
Charles Babbage proposes a difference engine in a paper to the Royal Astronomical Society entitled "Note on the application of machinery to the computation of astronomical and mathematical tables". - 2Jul
Denmark Vesey
Thirty-five slaves are hanged in South Carolina, including Denmark Vesey, after being accused of organizing a slave rebellion. - 26Jul
Guayaquil Conference
José de San Martín arrives in Guayaquil, Ecuador, to meet with Simón Bolívar. - 27Sep
Rosetta Stone
Jean-François Champollion announces that he has deciphered the Rosetta Stone.