Portal:History of science/Selected anniversaries/March 11
- 1811 - Birth of Urbain Le Verrier, French mathematician (d. 1877)
- 1822 - Birth of Joseph Louis François Bertrand, French mathematician (d. 1900)
- 1870 - Birth of Louis Bachelier, French mathematician (d. 1946)
- 1897 - A meteorite enters the earth's atmosphere and explodes over New Martinsville, West Virginia. The debris causes damage but no human injuries are reported
- 1910 - Birth of Robert Havemann, German chemist (d. 1982)
- 1920 - Death of Julio Garavito Armero, Colombian astronomer (b. 1865)
- 1921 - Birth of Frank Harary, American mathematician (d. 2005)
- 1955 - Death of Alexander Fleming, Scottish scientist, Nobel laureate (b. 1881)
- 1977 - Death of Ulysses S. Grant IV, American geologist (b. 1893)
- 1996 - The EU Database Directive is passed