
Benito Mussolini
- Oct 2 NY Hayden Planetarium, 4th in US, opens

Heinrich Himmler
- Oct 10 Coup under Gen Giorgios Kondylis in favor of Greek monarchy
Event of Interest
Oct 10 George Gershwin's "Porgy & Bess" opens on Broadway NY

George Gershwin
- Oct 10 League of Nations denounces Italian invasion of Abyssinia
Music Premiere
Oct 12 Cole Porter's musical "Jubilee" premieres in NYC

Cole Porter
Event of Interest
Oct 19 Mao Zedong's army reaches Shanxi

Mao Zedong
Event of Interest
Oct 20 Detroit Tigers future Baseball Hall of Fame first baseman Hank Greenberg is named AL MVP by the BWAA; Boston Red Sox pitcher Wes Ferrell is runner-up

Hank Greenberg
- Oct 20 Communist forces end their Long March at Yan'an, in Shaanxi, China, bringing Mao Zedong to prominence
- Oct 22 PGA Championship Men's Golf, Twin Hills CC: Johnny Revolta wins his only major title, defeating Tommy Armour, 5 & 4
- Oct 22 Establishment of the rank of Marshal of the Soviet Union
- Oct 23 Gabby Hartnett selected NL MVP
- Oct 23 Dutch Schultz, Abe Landau, Otto Berman, and Bernard "Lulu" Rosencrantz are fatally shot at a saloon in Newark, New Jersey in what will become known as The Chophouse Massacre.
Election of Interest
Oct 23 Mackenzie King is elected as Prime Minister of Canada for the third time

Mackenzie King