- Sep 1 A magnitude 7.9 earthquake strikes Tokyo and Yokohama in Japan, killing 142,000 people
- Sep 2 International Lawn Tennis Challenge, NYC, NY: Bill Johnson beats John Hawkes 6-0, 6-2, 6-1 for unassailable 3-1 lead for US over Australia; ends 4-1; US 4th straight win
- Sep 3 Dorothys Donelly's "Poppy" premieres in NYC
Wilhelmina's Silver Jubilee
Sep 6 Queen Wilhelmina of the Netherlands celebrates her silver jubilee
- Sep 7 Boston Red Sox Howard Ehmke no-hits Philadelphia A's, 4-0
- Sep 7 Interpol forms in Vienna
- Sep 7 Mary Katherine Campbell (Ohio), 16, crowned 2nd Miss America 1922-23
- Sep 8 Honda Point Disaster: nine US Navy destroyers run aground off the California coast. Seven are lost.
- Sep 9 Albin Stenroos runs world record 20 km (1:07:11.2)
- Sep 10 Irish Free State joins League of Nations
- Sep 11 After a single, Boston Red Sox pitcher Howard Ehmke retires next 27 New York Yankees
- Sep 11 Bernie Neis, hits the 1,000th Dodger home run
- Sep 11 ZR-1 (biggest active dirigible) flies over NY's tallest skyscraper, Woolworth Tower
- Sep 12 Britain takes over Southern Rhodesia from British South Africa Co.
Primo de Rivera's Coup
Sep 13 Miguel Primo de Rivera leads a military coup with the support of King Alfonso XIII to become dictator and Prime Minister of Spain
Dempsey KOs Firpo
Sep 14 In his 4th heavyweight boxing title defence Jack Dempsey recovers after being sent through the ropes to KO Argentine challenger Luis Firpo in the 2nd round at the Polo Grounds, NYC
- Sep 14 Red Sox 1st baseman George Burns pulls off an unassisted triple play
- Sep 15 Governor Walton of Oklahoma declares state of siege because of Ku Klux Klan terror
- Sep 15 Military officer Miguel Primo de Rivera becomes dictator and Prime Minister of Spain after launching a coup d'état
US Men's Tennis Open
Sep 15 US National Championship Men's Tennis, Germantown CC, Philadelphia: Bill Tilden wins 4th of 6 straight US singles titles; beats Bill Johnston 6-4, 6-1, 6-4
German Passive Resistance Ends
Sep 26 Gustav Stresemann's German government ends passive resistance against the French-Belgian occupation of the Ruhr
- Sep 26 The Commonwealth Conference is held in London, where Britain recognizes the right of the Dominions to make treaties with foreign powers
- Sep 27 Italian troops leave occupied Corfu
Lou Gehrig's 1st HR
Sep 27 NY Yankee Lou Gehrig hits 1st of his 493 HRs
- Sep 28 Abyssinia (Ethiopia) leaves League of Nations
- Sep 28 New York Yankees overwhelm Boston Red Sox 24-4
- Sep 28 Radio Times 1st published
PGA Championship
Sep 29 PGA Championship Men's Golf, Pelham CC: Defending champion Gene Sarazen beats Walter Hagan in 38 holes for 3rd of his 7 major titles
- Sep 29 Steinhart Aquarium opens to public in Golden Gate Park, San Francisco, California [1]
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