China

-221: The Chines Empire is united under the Qin Dynasty. Construction starts on the Great Wall. October 10, 1911: Trouble breaks out in the Yangtze Valley. The Empire falls. December 29 1911: Sun Yat-Sen is elected president of the Republic. February 12, 1912: The last Emperor abdicates. Yuan Shih-Kai becomes president of the Republic. October 24, 1945: Taiwan (Formosa) is admitted to the UN. October 1, 1949: The People's Republic of China (communist) is founded by Mao Tse-Tung. October 25, 1971: The People's Republic of China replaces Taiwan at the UN. September 9, 1976: Death of Mao Tse-Tung. June 4, 1989: The liberalization movement is harshly repressed at Tiananmen Square (Beijing).