Era
20th century
31
1900-1999
24
1939-1945
23
19th century
9
21st century
9
1625-1649
6
2000-2099
6
Charles I, 1625-1649
6
17th century
4
1800-1899
4
18th century
4
1917-1936
4
1933-1945
4
1991-
4
20e siècle
4
Civil War, 1936-1939
4
To 1500
4
1642-1660
3
1914-1918
3
1918-1933
3
1937-1945
3
1989-
3
1993-
3
Revolution, 1917-1921
3
Since 1989
3
Since 1991
3
-337
2
1485-1509
2
1491-1547
2
1509-1547
2
1533-1603
2
1600-1699
2
16th century
2
1830-1903
2
1835-1908
2
1878-1953
2
1900-2099
2
1918-1945
2
1945-
2
1961-1975
2
1971-
2
1975-
2
1975-1982
2
1990-
2
19e siècle
2
306-337
2
Boxer Rebellion, 1899-1901
2
Civil War, 1642-1649
2
Commonwealth and Protectorate, 1649-1660
2
Constantine I, the Great, 306-337
2
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