Era
20th century
13
1945-
8
1989-
3
18th century
2
19th century
2
21st century
2
1728-1814
1
1744-1818
1
1751-1820
1
1775-1783
1
1783-1809
1
1789-1809
1
1818-1883
1
1870-1924
1
1911-2004
1
1918-1945
1
1933-1945
1
1945-1989
1
1946-
1
1948-
1
1971-1990
1
1975-
1
1980-
1
1985-1991
1
1990-
1
2000
1
Civil War, 1991-2002
1
To 1810
1