- Sep 1 The Dwyer Brothers' 3-year-old Kentucky Derby winner Hindoo wins his 19th consecutive race, a purse event at Sheepshead Bay; winning streak snapped 6 days later in the September Handicap at Sheepshead
- Sep 3 Anton Bruckner completes his 6th Symphony
- Sep 3 1st US Men's National Championship, Newport R.I.: Richard Sears wins inaugural event beating William E. Glyn 6-0, 6-3, 6-2
- Sep 9 Egyptian military coup under colonel Arab "El Wahid"
- Sep 11 Triple landslides bury Elm, Switzerland
- Sep 13 America Lewis Howard Latimer invents and patents electric lamp with a carbon filament
- Sep 18 Chicago Tribune reports on a televideo experiment
Event of Interest
Sep 20 Chester A. Arthur sworn in as 21st president
Chester A. Arthur
- Sep 27 Chicago Cubs beat Troy 10-8 before record small "crowd" of 12