Era
20th century
58
19th century
19
21st century
15
1970-
12
1982-
11
1945-
10
18th century
7
1988-
6
Civil War, 1936-1939
6
Since 1970
5
1973-1988
4
1980-
4
1982-1994
4
1983-
4
1994-
4
Since 1945
4
1818-1883
3
1864-1920
3
1886-1931
3
1945-1982
3
1968-
3
1973-
3
17th century
2
1824-1920
2
1886-1939
2
1930-2002
2
1943-
2
1950-
2
1958-
2
1973-1985
2
1974-
2
1975-
2
1975-2008
2
1990-
2
1999-
2
Since 1982
2
1521-1812
1
1533-1592
1
1564-1642
1
1596-1650
1
15th century
1
1644-1689
1
1659-1719
1
1670-1732
1
16th century
1
1781-1832
1
1788-1808
1
1797-1854
1
1798-1857
1
1810-1899
1
more ...