Event of Interest
Sep 1 George Bernard Shaw's "Androcles & the Lion" premieres in London

George Bernard Shaw
- Sep 1 Yuan Shikai captures Nanjing "2nd Chinese revolution"
- Sep 2 Amsterdam reroutes sewage of canals to South Seas
- Sep 5 Phillies & Braves tie record of only 1 run in a double header, Phillies win 1st game 1-0, then a scoreless tie into 10th
- Sep 6 19th US Golf Amateur Championship won by Jerry Travers
- Sep 6 1st aircraft to loop the loop - Adolphe Pégoud in France
- Sep 6 Hamilton Alerts apply for ORFU reinstatement, taking the name Hamilton Rowing Club
- Sep 9 Russian pilot Pyotr Nesterov becomes the first pilot to fly a loop, doing so in his Nieuport IV monoplane; he is arrested for ten days for endangering government property
- Sep 10 Cleveland Call & Post forms
- Sep 10 George W. Buckner, named minister to Liberia
- Sep 10 Lincoln Highway opens as 1st paved coast-to-coast highway
- Sep 14 Cubs Larry Cheney hurls record 14-hit shutout against Giants (7-0)
- Sep 15 1st US milch goat show held, Rochester, NY
- Sep 16 Thousands of women demonstrate for Dutch female suffrage
- Sep 20 US Open Men's Golf, The Country Club: 20-year old amateur Francis Ouimet wins his only Open title in an 18-hole playoff, 5 strokes ahead of Britons Harry Vardon & Ted Ray
- Sep 21 1st aerobatic maneuver, sustained inverted flight, performed in France
- Sep 21 Turkey and Bulgaria sign peace treaty in Constantinople
- Sep 22 Coal mine explosion kills 263 at Dawson, New Mexico
- Sep 22 George Cohan's "Seven Keys to Baldpate" premieres in NYC
- Sep 22 The first batch of Indian passive resisters, consisting of 12 men and 4 women (including Mrs. Kasturba Gandhi) are arrested at Volksrust and imprisoned in Pietermaritzburg, South Africa
- Sep 23 Roland Garros is 1st to fly over Mediterranean Sea
- Sep 23 Serbian troops march into Albania
- Sep 23 Women protests take place in the Free State, South Africa, led by Charlotte Maxeke, resisting government attempts to impose passes on women; passes are burnt in front of the municipal offices
- Sep 29 Sam S Shubert Theater opens at 225 W 44th St NYC
Event of Interest
Sep 29 MLB Washington Senator Walter Johnson wins his 36th game

Walter Johnson
- Sep 29 The Treaty of Constantinople between Turkey and Bulgaria restores peace; the Turks recover Adrianople and Maritza River line