Subject (Era)
- 1939-19451
- 1945-1
- 1945-19751
- 1949-19761
- 1953-19751
- 2000-20991
- 20th Century1
- 220-5891
- Ancient Chinese, 600-12001
- Boxer Rebellion, 1899-19011
- Cultural Revolution, 1966-19761
- Elizabeth, 1558-16031
- Foreign intervention, 1857-18611
- Han dynasty, 202 B.C.-220 A.D.1
- James I, 1603-16251
- James VI, 1567-16251
- May Fourth movement, 19191
- Opium War, 1840-18421
- Qin and Han dynasties, 221 B.C.-220 A.D.1
- Qin dynasty, 221-207 B.C.1