Historical Period
20th century
411
21st century
241
Revolution, 1775-1783
212
19th century
208
18th century
121
1918-1945
50
17th century
47
1945-
46
Civil War, 1861-1865
43
To 1500
38
1989-
36
1991-
34
1933-1945
31
2000-
31
1981-2001
26
Revolution, 1789-1799
24
16th century
18
2001-2009
18
To 1789
18
To 1865
18
1990-
16
1960-
14
2009-
14
1945-1989
13
1976-2000
13
1993-
13
1775-1783
12
1975-
12
1900-1999
11
1918-
11
2000-2099
11
1775-1865
10
1818-1883
9
1979-
9
1865-1918
8
1760-1789
7
1861-1865
7
1883-1950
7
1914-1918
7
1929
7
1947-
7
1994-
7
Early modern, 1500-1700
7
1800-1899
6
1809-1865
6
1861-1917
6
1961-1971
6
1970-
6
1992-
6
1993-2001
6
more ...