Era
20th century
41
21st century
17
19th century
13
17th century
5
To 1500
5
16th century
4
1818-1883
4
1864-1920
3
1945-
3
Ottoman Empire, 1288-1918
3
1869-1948
2
1889-1976
2
1899-1959
2
1926-1984
2
1929
2
1930-2002
2
1949-
2
1950-
2
1963-2005
2
1995-2012
2
476-1492
2
Civil War, 1861-1865
2
-1627
1
1312-1377
1
1469-1527
1
1564-1616
1
1573?-1637
1
1632-1704
1
1723-1816
1
1724-1804
1
1798-1857
1
1803-1882
1
1839-1914
1
1842-1910
1
1858-1917
1
1859-1952
1
1862-1939
1
1867-1918
1
1868-1963
1
1880-1959
1
1882-1933
1
1883-1946
1
1886-1961
1
1886-1964
1
1894-1962
1
1899-1992
1
18th century
1
1901-1981
1
1913-1973
1
1918-1933
1
more ...