The following events occurred in November 1921:
November 12, 1921: World arms limitation conference opens in Washington, DC
November 4, 1921: Japanese Prime Minister Hara Takashi assassinated at train station
The following events occurred in January 1921:
January 25, 1921: "Robots" introduced in fiction by Karel Čapek
January 21, 1921: American hit film The Kid, with Charlie Chaplin and Jackie Coogan, premieres
January 20, 1921: All 56 crew of British sub HMS K5 killed in sinking
The new Ambassador Hotel