Events in History
- Sep 3 Rebellious slaves set fire to Paramaribo Suriname
Scientific Discovery
Sep 22 During his HMS Beagle voyage Charles Darwin discovers a large number of fossils at Punta Alta in Argentina

Charles Darwin
Birthdays in History
- Sep 4 Antonio Agliardi, Italian diplomat and Roman Catholic cardinal, born in Cologno al Serio, Italy (d. 1915)
- Sep 10 Randall L. Gibson, American Brigadier General (Confederate Army), born in Versailles, Kentucky (d. 1892)
- Sep 16 George Washington Custis Lee, American Major General (Confederate Army), born in Fort Monroe, Virginia (d. 1913)
- Sep 21 Samuel S. Carroll, American Brigadier General (Union Army), born in Takoma Park, Maryland (d. 1893)
- Sep 25 William Le Baron Jenney, American architect (father of skyscraper), born in Fairhaven, Massachusetts (d. 1907)
- Sep 30 Frederick Sleigh "Bobs" Roberts, British gov of Natal (Ireland-Boer war)