Era
20th century
587
Revolution, 1775-1783
549
Colonial period, ca. 1600-1775
405
19th century
382
Revolution
290
1917-
249
18th century
223
Civil War, 1861-1865
188
1775-1783
165
1706-1790
134
1732-1799
120
To 1775
117
1945-
104
1918-1945
93
1775-1865
87
1914-
81
War of 1812
79
1809-1865
77
French and Indian War, 1755-1763
73
1933-1945
70
17th century
68
1644-1718
63
1760-1789
59
1783-1865
59
1854-1861
59
1783-1848
56
1865-1918
56
1743-1826
50
1939-1945
50
1791-1868
49
1800-1870
49
1900-1999
49
To 1964
46
1
43
1737-1809
42
1861-1865
42
1945-1953
42
1865-1950
39
1914-1918
37
1865-1900
35
1917-1945
33
1918-
33
1975-
32
To 1865
32
1639?-1716
30
1829-1906
30
1755-1763
29
1797-1801
26
1809-1817
26
1877-1964
26
more ...