Paavo Nurmi World Records
Oct 1 Finnish distance runner Paavo Nurmi runs 15k world record 46:49.6 and 10 miles 50:15.0 in Berlin, Germany
- Oct 1 Los Angeles International Airport (LAX) opens in the Westchester section of Los Angeles California
- Oct 1 USSR launches its first 5-year plan
- Oct 2 "Prelature of the Holy Cross and the Work of God", known as Opus Dei, founded by Catholic priest Josemaría Escrivá in Madrid, Spain
- Oct 3 French submarine "Ondine" sinks returning to Toulon, drowning 42
- Oct 4 KPD begins petition against Germany building a battle fleet
PGA Championship
Oct 6 PGA Championship Men's Golf, Five Farms CC: Leo Diegel dominates Al Espinosa, 6 & 5 in the final to win the first of his 2 consecutive titles
Tito Imprisoned
Oct 6 Yugoslav revolutionary Josip Broz Tito is convicted after police find bombs in his apartment and sentenced to 5 years in jail
- Oct 7 Paavo Nurmi runs world record 10 miles (50:15.0)
- Oct 7 Race Tafari Makonnen crowned King of Abyssinia
Paris
Oct 8 Cole Porter and E. Ray Goetz' musical "Paris" opens at the Music Box Theater, NYC; runs for 195 performances
- Oct 8 Joseph Szigeti debuts Alfredo Casella's Violin Concerto
World Series
Oct 9 Baseball World Series: NY Yankees beat St. Louis Cardinals, 7-3 at Sportsman's Park to become first to sweep consecutive World Series; Babe Ruth hits smashes 3 HRs for Yanks
- Oct 9 Marcel Pagnol's play "Topaze" premieres in Paris
Chiang Kai-shek Rises to Power
Oct 10 Chiang Kai-shek becomes Director of the State Council of China
- Oct 12 1st use of iron lung (Boston's Children Hospital)
The Age of Zeppelins
Oct 15 German dirigible "Graf Zeppelin" lands in Lakehurst, New Jersey
Johnson Signs for Senators
Oct 15 Walter Johnson signs a 3-year contract to manage the Senators
Mickey Cochrane
Oct 16 Mickey Cochrane wins AL MVP honors, edging Heinie Manush by 2 points
- Oct 22 China expels all Russian instructors & civil servants
- Oct 22 ESL Robinson's "Far-Off Hills" premieres in Dublin
Rugged Individualism
Oct 22 Herbert Hoover speaks of "American system of rugged individualism"
- Oct 22 Phi Sigma Alpha fraternity is founded at the University of Puerto Rico, Rio Piedras Campus.
- Oct 28 Indian freedom fighter Lala Lajpat Rai injured leading silent protest against visiting British commission in Lahore (dies of injuries 17th November)
- Oct 28 Indonesian child laws enforced in Bahasa Indonesia