Era
Colonial period, ca. 1600-1775
408
19th century
340
20th century
211
18th century
167
17th century
130
1866-1895
111
1600-1775
103
1800-1899
103
1934-
96
1789-1869
95
1750-1815
78
1600-1750
73
1900-1999
70
To 1789
68
Civil War, 1861-1865
62
1869-1934
58
Revolution, 1775-1783
57
1790-1794
41
To 1763 (New France)
41
16th century
37
To 1775
37
1775-1783
32
1815-1875
32
Spanish colony, 1565-1763
32
To 1848
32
1775-1865
31
French and Indian War, 1754-1763
30
To 1846
28
1600-1799
26
21st century
26
1700-1799
23
1783-1865
22
1839-1876
22
1860-1890
22
To 1803
21
1862-1865
20
Since 1934
20
Queen Anne's War, 1702-1713
19
To 1763
19
active 16th century
17
1600-1699
16
1768-1813
16
To 1795
14
War of 1812
14
1716-1771
13
1742?-1772
13
To 1500
13
approximately 1842-1877
13
1700-1899
12
1767-1845
12
more ...