- Feb 4 John Millington Synge's play "Well of Saints" premieres in Dublin
- Feb 5 American occupation of Cuba ends
- Feb 6 Japan notifies Russia that in view of Russia's delaying tactics and provocative military action, Japan is ending negotiations and recalling its members from Moscow
- Feb 7 Baltimore catches fire (1500 buildings destroyed in 80 blocks)
- Feb 9 Without warning, Japanese torpedo boats make an overnight attack on Russian ships at naval base in Port Arthur, Manchuria, beginning the Russo-Japanese War
- Feb 9 Japanese land troops at Chemulpo (Inchon), near Seoul, Korea; within the next three weeks they will have advanced to the Yalu River, the border of Manchuria
- Feb 10 Japan and Russia declare war
Music Premiere
Feb 17 Giacomo Puccini's opera "Madama Butterfly" premieres at La Scala in Milan, Italy
- Feb 21 National Ski Association forms in Ishpeming, Michigan
- Feb 22 The United Kingdom sells a meteorological station on the South Orkney Islands to Argentina; the islands are subsequently claimed by the United Kingdom in 1908.
- Feb 22 The Hague Tribunal gives its decision in claims against Venezuela; it sets the sum to be paid by Venezuela and gives preferential treatment to the three powers that initiated the block - Britain, Germany, and Italy
- Feb 23 United States acquires control of the Panama Canal Zone for $10 million
- Feb 23 Having occupied Korea, Japan signs a treaty with Korea under which it becomes a Japanese protectorate in return for Japanese protection from other powers
- Feb 25 J M Synge's "Riders to the Sea" opens at Irish National Theater Society
- Feb 25 Stanley Cup: Ottawa Silver 7 sweep Toronto Marlboroughs in 2 games
Music Premiere
Feb 28 Vincent d'Indy's 2nd Symphony in B, premieres
- Feb 28 Football club Sport Lisboa (Benfica) founded in Lisbon, Portugal
Historic Event
Feb 29 Theodore Roosevelt, appoints 7-man Panama Canal Commission to proceed with completing a canal at the Isthmus
