Historical Period
Revolution, 1775-1783
560
Civil War, 1861-1865
237
Revolution, 1789-1799
231
20th century
159
1775-1783
134
19th century
112
To 1775
68
1933-1945
66
18th century
63
Colonial period, ca. 1600-1775
58
1918-1945
45
1729-1797
40
1871-1918
40
Revolution
30
Civil War, 1642-1649
28
2001-2009
27
1760-1789
22
1861-1865
22
Civil War, 1936-1939
22
1849-1861
20
War of 1812
20
1775-1865
18
1809-1865
18
1815-1861
18
Revolution, 1917-1921
18
1760-1820
17
1857-1861
17
1789-1815
16
1889-1945
15
1936-1945
15
1931-1939
14
21st century
14
To 1865
13
1789-1799
12
17th century
12
1946-
12
1711-1780
11
1989-
11
1912-1945
10
Civil war
10
French and Indian War, 1754-1763
9
1789-1797
8
1914-1918
8
1980-1992
8
Nicholas II, 1894-1917
8
1723-1791
7
1783-1865
7
1845-1861
7
1894-1917
7
1910-1936
7
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