- Jan 1 The Commonwealth of Australia is formed when the British (Imperial) Parliament Act, the Commonwealth of Australia Constitution Act 1900, comes into effect
- Jan 8 New South Wales score 918 all out vs South Australia in 560 minutes
- Jan 9 New South Wales (918) defeat South Australia (157 & 156) by innings & 605
- Jan 10 Oil discovered at Spindletop, Beaumont, marking the start of the Texas oil boom (gusher age)
- Jan 18 Pope Leo XIII publishes encyclical Graves De Communi Re
- Jan 21 Clyde Fitch's "Climbers" premieres in NYC
Event of Interest
- Jan 24 1st games played in baseball's American League
- Jan 24 Emily Hobhouse views the British administrated concentration camp at Bloemfontein for women and children
- Jan 24 Denmark and the US sign a treaty under which Denmark will sell the Danish West Indies to the USA for $5 million, but the sale will be postponed until 1917
- Jan 31 Boer generals Jan Smuts & De la Rey conqueror Mud river, Transvaal
Anton Chekhov