Era
20th century --
3
1989-
2
2000-
2
2001-2009
2
2002-
2
20th century
2
1797-1828
1
1817-1825
1
1821-1865
1
1871-1918
1
1872-1944
1
1891-1937
1
1891-1973
1
1894-1971
1
1913-1921
1
1918-1933
1
1918-1945
1
1919-1933
1
1941-
1
1945-
1
1945-1989
1
1946
1
1952-
1
1953-1985
1
1975-1990
1
1975-1994
1
1976-2002
1
1990-
1
1991-
1
1997-2007
1
19th century --
1
2001-2009 --
1
2007-
1
21st century
1
220-589
1
Civil War, 1861-1865
1
Spanish colony, 1784-1821
1
To 1821
1
To 622
1