south korea timeline By atking7186 Period: Jan 1, 1900 to Jan 1, 2011 South Korea Timeline Mar 20, 1910 choson dynasty ends Choson dynasty ends Mar 20, 1945 south korea is taken from the Japanese and is occupied by the U.S. . Mar 20, 1950 N. Korea tries to invade S. Korea and Korean War starts Mar 20, 1953 Korean War ends Mar 20, 2011 Koreas remain divided