To search books under subject, you may refer to the the following subject keywords:
China -- History -- 1644-1795 （包含轶事、史料、人物传记、会议论文、词典等）
China -- History -- 1795-1861 （包含轶事、史料、人物传记等）
China -- History -- 1861-1912 （包含轶事、史料、人物传记、画册等）
China -- History -- 1912-1928 （包含轶事、史料、人物传记、期刊、画册等）
For specific historical events, please refer to the following:
For Taiping rebellion, China --History --Taiping Rebellion, 1850-1864 (Call number range: DS758.7--DS759.4)
Barrier Forts, Battle of the, China, 1856 第二次鸦片战争
For Tongzhi restoration, China --History --Tongzhi, 1861-1875 (Call number range: DS763.5--DS763.7)
For Boxer uprising, China --History --Boxer Rebellion, 1899-1901 (Call number range: DS770--DS772)
For May fourth movement, China --History --May Fourth Movement, 1919 (Call number range: DS777.43)
For China's war with Japan, Sino-Japanese War, 1937-1945 (Call number range: DS777.52 to DS777.533)
For Cultural revolution, China --History -- Cultural Revolution, 1966-1976 (Call number: DS778.7)