Era
1993-2001
7
18th century
5
19th century
4
1981-1993
3
1945-1989
2
1947-
2
1981-1989
2
20th century
2
1743-1826
1
1768-1812
1
1783-1789
1
1783-1809
1
1783-1850
1
1783-1865
1
1801-1809
1
1808-1875
1
1809-1817
1
1809-1865
1
1862-1865
1
1884-1972
1
1887-1979
1
1909-1998
1
1924-2005
1
1945-1990
1
1946-
1
1948-
1
1969-1974
1
1980-1993
1
1981-2001
1
1989-
1
1990-
1
1991-
1
1993-
1
2001-2009
1
2009-2017
1
21st century
1
Civil War, 1861-1865
1