Era
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Since 1991
7
1558-1603
6
1638-1715
6
1800-1899
6
1910-1936
6
1938-1945
6
Commonwealth and Protectorate, 1649-1660
6
1815-1870
5
1945-1955
5
1960-
5
Revolution, 1789-1799
5
1491-1547
4
1642-1660
4
1769-1822
4
1801-1917
4
1810-
4
1871-
4
1871-1999
4
1878-1953
4
1936-1953
4
392-814
4
Civil War, 1861-1865
4
Consulate and First Empire, 1799-1815
4
Since 1800
4
To 1492
4
Unification, 1990
4
1533-1603
3
1600-1699
3
1633-1701
3
1660-1688
3
1660-1714
3
1689-1702
3
1765-1947
3
1770-1861
3
1775-1783
3
1784-1865
3
1800-1918
3
1800-1999
3
1859-1941
3
1874-1965
3
1876-1958
3
1883-1945
3
1900-1945
3
1901-1910
3
1904-1993
3
1917-1936
3
1917-1945
3
1919-1932
3
1946-
3
1954-
3
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