Era
Revolution, 1775-1783
2,178
Civil War, 1861-1865
2,149
Colonial period, ca. 1600-1775
553
19th century
540
War of 1812
444
Revolution
419
20th century
333
18th century
326
Civil War
245
French and Indian War, 1755-1763
181
1775-1783
146
1732-1799
142
1861-1865
139
Civil war
108
1783-1865
96
1809-1865
88
To 1775
81
Civil war, 1861-1865
73
War with Mexico, 1845-1848
68
1815-1861
63
1783-1815
52
Constitutional period, 1789-1809
46
Tripolitan War, 1801-1805
44
To 1865
43
17th century
41
1865-1898
41
Confederation, 1783-1789
40
1757-1834
34
1706-1790
33
War of 1898
33
1775-1865
32
1809-1817
32
1743-1826
28
1760-1789
27
To 1900
27
1755-1763
25
1822-1885
25
1783-1809
24
1849-1877
24
1933-1945
24
Siege, 1781
24
1807-1870
21
To 1863
21
1741-1801
20
French and Indian War, 1754-1763
20
King George's War, 1744-1748
20
To 1763 (New France)
20
1826-1885
19
1865-1918
19
1789-1809
17
more ...