- Sep 4 Britain ends its policy of penal transportation to New South Wales in Australia
- Sep 10 Congressman John R. Lynch presides over Republican National Convention
- Sep 20 6.2 mile Arlberg railroad tunnel completed in Austria
- Sep 20 Equal Rights Party nominates female candidates for US President and Vice President
- Sep 23 American Herman Hollerith patents his mechanical tabulating machine, the beginning of data processing
- Sep 24 Dixey, Rice & Gill's musical "Adonis" premieres in NYC
- Sep 26 Suriname army shoots on British-Indian contract workers, 7 killed