Era
20th century
177
1900-1999
151
20e siècle
139
19th century
56
19e siècle
46
1800-1899
39
Civil War, 1861-1865
32
20e siècle
28
1861-1865 (Guerre de Sécession)
24
21st century
24
21e siècle
22
2000-2099
15
1861-1865
14
18e siècle
11
18th century
10
Civil War, 1936-1939
9
1700-1799
8
1918-1945
8
1936-1939 (Guerre civile)
8
1809-1865
7
1945-
6
2011- (Guerre civile)
6
Civil War, 2011-
6
1800-1999
5
1908-1957
5
1945-1989
5
1946-
5
Revolution, 1789-1799
5
Since 1900
5
1861-1865 (Guerre de Sécession)
4
1887-1920
4
1922-1945
4
1945-1953
4
1956
4
1960-
4
1961-1975
4
1980-
4
19e siècle
4
Since 1960
4
Since 2000
4
1672-1729
3
1702-1714 (Anne Stuart)
3
1863-1951
3
1868-1944
3
1878-1967
3
1898-1967
3
1899-1961
3
1910-1989
3
1912-1949
3
1912-1949 (République)
3
more ...