Japanese Imperialism By JennyLin78 Period: May 4, 1890 to May 4, 1945 Japanese Imperialism May 4, 1894 Taiwan comes Japan's first colony as a result of the Sino-Japanese War May 4, 1904 Russo-Japanese War May 4, 1905 Japan makes Korea a protectorate May 4, 1910 Japan annexes Korea May 4, 1922 Japan signs a peace treaty with China May 4, 1929 The Great Depression May 4, 1931 Japan seizes Manchuria May 4, 1937 Japan invades and defeats Nothern China May 4, 1941 Pearl Harbor Attack May 4, 1945 Atomic Bombings of Hiroshima and Nagasaki