Era
20th century
35
1945-
15
1989-
15
2001-2009
15
1900-1999
13
1981-2001
11
Civil War, 1861-1865
11
1945-1989
10
1993-2001
10
Since 1945
10
21st century
9
19th century
8
2009-2017
7
1861-1865
5
1980-
5
Since 1981
5
Since 1989
5
1783-1865
4
1971-1981
4
1981-
4
2009-
4
20e siècle
4
1969-
3
1977-1981
3
1981-2009
3
2001-
3
2001-2017
3
Since 1980
3
1918-1945
2
1933-1945
2
1971-2001
2
1989-1993
2
1991-
2
1993-
2
1993-2009
2
2000-2099
2
Colonial period, ca. 1600-1775
2
ESTADOS UNIDOS
2
Revolution, 1775-1783
2
Since 1993
2
To 1775
2
-1996
1
1588-1679
1
1735-1818
1
1738-1796
1
1743-1826
1
1748-1829
1
1773-1859
1
1775-1783 (Révolution)
1
1775-1850
1
more ...