Era
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1819-1892
1
1857-1861
2
1861 - 1865
3
1861-1865
2
1897-1901
1
1897-1909
1
1898-1952
1
18th century
12
1900-1999
4
1901-1909
1
1904-1999
1
1906-1997
1
1913-1921
1
1946-
15
1950-
2
1951-
1
1967-
1
1968-
1
1970-
1
1973-
1
1980-
2
1981-1993
1
1989-
1
1989-1994
1
1993-2001
1
19th century
10
2000-2099
6
2001 - 2009
1
2001-
1
2001-2009
2
2009-2017
2
2017-2021
2
20th century
4
21st century
12
Civil War, 1861-1865
8
Confederation, 1783-1789
3
Constitutional period, 1789-1809
2
Geschichte 1880-1940
1
Revolution, 1775-1783
11
Siege, 1780
1
Siege, 1781
1
Since 1951
1
Since 2000
1
To 1775
2
To 1789
1
To 1865
2
To 1899
1
War of 1812
1