Era
20th century
1,246
19th century
963
Civil War, 1861-1865
439
1808-1889
218
18651898
92
1971-
80
Revolution, 1775-1783
75
1809-1865
74
1888
65
21st century
65
1946-
55
2001-2009
55
1948-
53
1861-1865
49
1900-1999
49
1981-1989
49
1945-
43
1818-1893
39
1945-1989
39
Civil War, 18611865
38
1786-1866
37
1861
35
1969-1974
35
1872
30
1993-2001
29
Since 1945
29
1868
26
18th century
26
1989-1993
26
1993-
24
1913-1994
20
1933-1945
20
1989-
20
1732-1792
19
1800-1899
19
1981 - 1989
18
2001-
18
1884
16
1889-1945
16
1713-1792
15
1864
15
1900 - 1999
14
1963-1969
14
Since 1993
14
1939-1945
13
1980-2020
13
1981-
13
2017-2021
13
1732-1799
12
1775-1783
12
more ...