Willem de Sitter, Dutch mathematician, physicist, and astronomer (d. 1934)
Willem de Sitter (6 May 1872 – 20 November 1934) was a Dutch mathematician, physicist, and astronomer.
1872May, 6
Willem de Sitter
Choose Another Date
Events on 1872
- 5Mar
Railway air brake
George Westinghouse patents the air brake. - 22Mar
Gender equality
Illinois becomes the first state to require gender equality in employment. - 22May
Amnesty Act
Reconstruction Era: President Ulysses S. Grant signs the Amnesty Act into law, restoring full civil and political rights to all but about 500 Confederate sympathizers. - 29Nov
Battle of Lost River
American Indian Wars: The Modoc War begins with the Battle of Lost River. - 9Dec
P. B. S. Pinchback
In Louisiana, P. B. S. Pinchback becomes the first African-American governor of a U.S. state.