Five Pieces for Orchestra
Sep 3 Arnold Schoenberg's "Funf Orchesterstucke" (Five Pieces for Orchestra) premieres in London at a Promenade Concert
Baseball Record
Sep 11 Philadelphia second baseman Eddie Collins steals MLB record 6 bases in the Athletics' 9-7 win over Detroit Tigers at Navin Field
- Sep 12 Dutch Olympian Committee forms (NOC)
- Sep 15 Boston Red Sox pitcher "Smoky" Joe Wood ties then MLB record of 16 straight wins with a 2-1 victory over St. Louis Browns at Sportsman's Park
- Sep 15 War between Turkey & Montenegro breaks out in Albania
- Sep 17 Center fielder Casey Stengel breaks in with Brooklyn & hits 4 singles
- Sep 19 Pius X encyclical Singular quadam, against interconfess unions
- Sep 19 Soccer team NAC (Noad Advendo Combination) forms in Breda
- Sep 19 The wattle is declared Australia's national flower and incorporated into the Commonwealth Coat of Arms
- Sep 22 Philadelphia second baseman Eddie Collins becomes only player in MLB history to steal 6 bases in one game for a second time as A's beat St. Louis Browns, 8-2
First Keystone Comedy
Sep 23 1st Mack Sennett "Keystone Comedy" movie released "Cohen Collects a Debt"
- Sep 25 Columbia University Graduate School of Journalism is founded in New York City
Memphis Blues
Sep 27 W. C. Handy publishes "Memphis Blues", considered the 1st blues song
- Sep 28 SS Kichemaru disappears in storm off Japanese coast, 1,000 die
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