- Sep 6 Chicago White Stockings beat Detroit Wolverines, 26-6 at Lake Front Park, Chicago; smash MLB record 18 runs in 7th inning
- Sep 6 Cub's Burns (extra bases), Williamson & Pfeiffer get 3 hits in 1 inning
- Sep 8 New York Gothams score 13 runs in an inning in a 16-6 win over Philadelphia Quakers at Recreation Park, Philadelphia; MLB record (18) set 2 days earlier
- Sep 8 Northern Pacific RR's last spike driven at Independence Creek, Montana
- Sep 11 American architect James Cutler patents postal mail chute for Elwood Building, Rochester, New York
- Sep 13 Hugh Daily, a one-armed pitcher for Cleveland (Forest City), tosses 1-0 no-hitter against Philadelphia
- Sep 21 First direct US-Brazil telegraph connection
- Sep 24 National black convention meets in Louisville, Kentucky
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists