Foreign Office Files for China, 1919-1980 Official British documents from the National Archives, UK. 1919-1929, Kuomintang, CCP and the Third International; 1930-1937, The Long March, Civil War in China and the Manchurian Crisis; 1938-1948, Open Door, Japanese War and the Seeds of Communist Victory; 1949-1956, The Communist Revolution; 1957-1966, The Great Leap Forward; 1967-1980, The Cultural Revolution. (Adam Matthew)