February 5—Japanese and Russian representatives at St. Petersburg and Tokio given their passports.
February 7—Japanese seize Masanpho, Korea as a troop base.
February 8-9—Varyag and Korietz destroyed in Chemulpo harbor, and Togo attacks Port Arthur fleet.
February 10—Czar declares war. Japanese occupy Seoul.
February 11—Japan declares war. The United States announces neutrality.
February 12—Sinking of the Russian mineboat Yenesei; 96 lives lost
March 1—Kamimura's squadron bombards Vladivostock.
March 27—Kuropatkin reaches Mukden. Japanese take Chongu.
May 1—Kuroki crosses the Yalu, driving back Sassulitch.
May 4—Japanese take Feng-hwang-cheng.