- 366 The Alamanni cross the frozen Rhine River in large numbers, invading the Roman Empire.
- 1570 Tsar Ivan the Terrible's march to Novgorod begins
- 1905 The American anarcho-syndicalist union known as the Industrial Workers of the World forms.
- 1942 WWII: 28 nations at war with Axis powers, pledge no separate peace deals
- 1947 Mahatma Gandhi begins march for peace in East-Bengali
Willis Carrier recieves a US patent for the world's first air conditioner
On January 2, 1906