January 22 – The Bloody Sunday massacre of peaceful Russian demonstrators in St Petersberg helps trigger the abortive Russian Revolution of 1905.
February 20 – Russo-Japanese War – The Battle of Mukden begins in Manchuria
March 20 – Grover Shoe Factory disaster – A boiler explosion, building collapse and fire in Brockton, Massachusetts, kills 58
March 23 – About 1,500 men, led by Eleftherios Venizelos, meet at the village of Theriso, Crete, to challenge the island’s authoritarian government, and press for its unification with Greece.
May 27–28 – The Japanese fleet under Admiral Heihachiro Togo destroys the Russian fleet under Admiral Zinovi Petrovich Rozhdestvenski, in a 2-day battle.
June 7 – The Norwegian Parliament declares the union with Sweden dissolved, and Norway achieves full independence
27 June – Mutiny on the Battleship Potemkin
December 7–18 A Bolshevik-led revolt in Moscow is suppressed by the army.