- Dec 1 1st Christmas Club payment made, to Carlisle Trust Co, Pennsylvania
- Dec 1 1st Israeli kibbutz founded, Deganya Alef
- Dec 2 National Hockey Association (NHA) is formed in Montreal; original members include Montreal Wanderers and Montreal Canadiens; becomes NHL after some NHA teams leave due to ownership disagreements, and create their own league
- Dec 4 1st CFL Grey Cup, Rosedale Field, Toronto: University of Toronto Blues beat Toronto Parkdale Canoe Club, 26-6; Blues undefeated
- Dec 4 Oldest still-operating NHL franchise is officially established as J. Ambrose O’Brien and Jack Laviolette create the “Club de Hockey Canadien,” known today as the Montreal Canadiens
Bakelite: the Birth of Plastic
Dec 7 Inventor Leo Baekeland patents the first thermo-setting plastic, Bakelite, sparking the birth of the plastics industry
First Woman Awarded Literature Nobel
Dec 10 Swedish writer Selma Lagerlöf is the first woman to win the Nobel Prize for Literature
- Dec 11 Canadian Football exhibition game played in Van Cortlandt Park in Bronx, Hamilton Tigers beat Ottawa Rough Riders, 11-6 before 15,000
- Dec 11 Colored moving pictures demonstrated at Madison Square Garden, NYC
- Dec 15 Thomas J. Lynch becomes president of baseball's National League
- Dec 16 A conservative revolution and US pressure forces Nicaraguan President Jose Santos from office
- Dec 21 1st junior high school established (Berkeley California)
"The City"
Dec 21 Clyde Fitch's play "The City" premieres in NYC
- Dec 21 Unitversity of Copenhagen rejects American Explorer Frederick A Cook's claim that he was 1st to North Pole
- Dec 23 Albert I becomes the third King of the Belgians
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists