Era
20th century
20
19th century
9
1917-1936
5
1878-1953
4
1933-1945
4
17th century
3
1887-1940
3
18th century
3
1936-1953
3
16th century
2
1918-1933
2
1918-1945
2
1929
2
1949-1976
2
1953-1985
2
21st century
2
Revolution, 1775-1783
2
1599-1647
1
1780-1842
1
1789-1799
1
1789-1820
1
1867-1947
1
1882-1949
1
1884-1918
1
1884-1960
1
1884-1962
1
1884-1975
1
1893-1991
1
1910-1921
1
1917-1945
1
1922-1945
1
1925-1953
1
1945-
1
1945-1989
1
1945-1992
1
1953-1975
1
1961-1969
1
1993-
1
British Occupation, 1765-1947
1
Colonial period, ca. 1600-1775
1
Cultural Revolution, 1966-1976
1
George III, 1760-1820
1
George IV, 1820-1830
1
Intervention, 1968
1
Middle Ages, 500-1500
1
Middle Ages, 600-1500
1
Puritan Revolution, 1642-1660
1
Revolution, 1789-1799
1
Revolution, 1917-1921
1
To 1500
1
more ...