Era
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1660-1714
40
1917-1936
40
1949-1976
40
1741-1801
39
1783-1809
39
To 1865
37
1966-1976
36
Revolution, 1848-1849
35
Revolution, 1918
35
1660-1688
34
1769-1821
34
February Revolution, 1848
34
February Revolution, 1917
33
Revolution, 1911-1912
33
1848-1849
32
1910-1920
31
Revolution, 1974
31
1776
30
1959-1990
30
2000-2099
30
Siege, 1775-1776
30
Nicholas II, 1894-1917
29
Siege, 1781
28
1789-1900
27
1991-
27
Civil War, 1861-1865
27
James II, 1685-1688
27
To 1863
27
1642-1660
26
1649-1660
26
1743-1826
25
1770-1783
25
1789-1820
25
1990-
25
To 1789
25
To 1898
25
1743-1803
24
1783-1789
24
1893-1976
24
1801-1917
23
War of 1812
23
1600-1699
22
1870-1924
22
1933-1959
22
1989-
22
Since 1900
22
1599-1658
21
1600-1799
21
1757-1834
21
1926-2016
21
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