Era
20th century
6
1928-1937
5
1945-
5
1989-
4
1991-
4
1912-1928
3
1912-1949
3
1953-1985
2
1976-
2
1988-
2
19th century
2
1644-1912
1
1801-1917
1
1815-1861
1
1823-1901
1
1861-1912
1
1867-1918
1
1881-1936
1
1893-1976
1
1917-1945
1
1928
1
1933-1945
1
1937-1945
1
1942-
1
1945-1955
1
1945-1991
1
1949-
1
1949-1976
1
1960-
1
1960-1988
1
1970-
1
1976-2002
1
1980-
1
1982-
1
1985-
1
1985-1991
1
1986-1991
1
2000
1
2001-
1
2002-
1
21st century
1
937
1
Bombardment, 1945
1
May Fourth movement, 1919
1
Taiping Rebellion, 1850-1864
1