Historical Period
19th century
44
20th century
42
18th century
23
1783-1789
22
21st century
20
1991-
16
1980-
13
1945-
12
1809-1865
11
1960-
11
1989-
8
1945-1989
7
1775-1783
6
1783-1865
6
1861-1865
6
1743-1826
5
1783-1809
5
1801-1809
5
1914-
5
1933-1945
5
1939-
5
Civil War, 1861-1865
5
To 1500
5
1775-1865
4
1797-1801
4
1945-1980
4
1947-
4
1980-1993
4
1990-
4
1993-
4
1996
4
2003-
4
Revolution, 1775-1783
4
1815-1861
3
1841-1867
3
1867-1914
3
1952-
3
1969-1974
3
1981-1989
3
1981-1993
3
1996-
3
2001-2009
3
Siglo XIX
3
1702-1714
2
1751-1836
2
1755-1835
2
1757-1804
2
1789-1809
2
1789-1815
2
1800
2
more ...