- Dec 1 Game of Bingo invented by Edwin S Lowe
- Dec 2 First skull of Peking man found, 50 km out of Peking at Tsjoe Koe Tien
- Dec 3 Boston Bruins begins then NHL record 14 game winning streak
- Dec 5 1st US nudist organization, the American League for Physical Culture in New York City
- Dec 6 Turkey introduces female suffrage
- Dec 7 Leo Diegel wins PGA golf tournament
Nobel Prize
Dec 10 Nobel Prize for Physiology or Medicine jointly awarded to Christiaan Eijkman and Sir Frederick Gowland Hopkins for the discovery of vitamins
Christiaan Eijkman
- Dec 14 Alexander Zaimis elected president of Greece
- Dec 15 Swiss pilot Walter Mittelholzer is the first to fly over Mt. Kilimanjaro
- Dec 16 Chic Blackhawks 1st game at Chicago Stadium, beat Pittsburgh Pirates, 3-1
- Dec 20 Heinie Wagner replaces Bill Carrigan as Red Sox manager
- Dec 20 Mount Davidson dedicated as a San Francisco city park
- Dec 21 1st group hospital insurance plan offered (Dallas Tx)
Event of Interest
Dec 21 Coco the Clown first appears for Bertram Mills Circus in Manchester, England
Coco the Clown
- Dec 25 Grimmett takes 6-146 for SA, Queensland all out 380 Crowd 5,390
