Japan By julia_gdovin May 4, 1894 Taiwan- !sr colony as a result of the Sino Japanese War. May 4, 1904 RUsso- Japanese War May 4, 1905 Japanese-rokus Korea a protectorate May 4, 1910 Jappanese-annexed Korea May 4, 1922 Japanese signed peace treaty with China May 4, 1929 Great depression May 4, 1931 Invades Manchuria May 4, 1937 Invade Northern china May 4, 1941 Pearl Harbor May 4, 1945 2 atomic bombs dropped on Japan