Era
20th century
92
19th century
29
21st century
28
18th century
16
To 1500
12
1975-
10
16th century
9
17th century
8
1939-1975
6
2008-
6
Civil War, 1936-1939
6
1886-1931
4
15th century
3
1886-1939
3
1982-
3
Medieval, 500-1500
3
1870-1940
2
1944-
2
1975-1982
2
Charles III, 1759-1788
2
Classical period, 1500-1700
2
Middle Ages, 500-1500
2
Republic, 1931-1939
2
Roman period, 218 B.C.-414 A.D.
2
14th century
1
1516-1700
1
1521-1812
1
1659-1719
1
1670-1732
1
1731-1808
1
1777-1856
1
1781-1832
1
1784-1847
1
1788-1808
1
1803-1861
1
1818-1883
1
1820-1890
1
1830-1904
1
1841-1920
1
1850-1925
1
1853-1925
1
1866-1951
1
1867-1928
1
1869-1946
1
1877-1939
1
1879?-1955 or 1956
1
1880-1962
1
1883-1962
1
1886-1959
1
1889-1978
1
more ...