Event of Interest
Dec 3 Willis Carrier presents his influential "Rational Psychrometric Formulae" on air conditioning to the American Society of Mechanical Engineers

Willis Carrier
- Dec 7 Leslie J Stuart's musical "Betsy" premieres in NYC
- Dec 7 National Hockey Association forms with New Westminster, Vancouver & Victoria
- Dec 10 Calbraith Rogers completes 1st crossing of US by airplane in 84 days
- Dec 10 Dutch lawyer Tobias Asser receives the Nobel Peace Prize
- Dec 12 Delhi replaces Calcutta as the capital of India.
Event of Interest
Dec 14 Norwegian Roald Amundsen's expedition is the 1st to each the South Pole

Roald Amundsen
Election of Interest
Dec 29 Sun Yat-sen elected 1st President of the Republic of China

Sun Yat-sen
Nobel Prize
Dec 31 Marie Curie receives her 2nd Nobel Prize

Marie Curie