Era
20th century
58
21st century
26
To 1900
15
19th century
7
Civil War, 1861-1865
5
1880-1959
4
1880-1964
4
18th century
4
American Invasion, 1989
3
1865-1877
2
1865-1950
2
1890-1969
2
1893-1981
2
1899-1954
2
1981-1989
2
2001-
2
2003-
2
Colonial period, ca. 1600-1775
2
1767-1845
1
1786-1866
1
17th century
1
1817-1873
1
1845-1912
1
1866-1895
1
1894-1982
1
1913-1994
1
1921-
1
1923-2023
1
1933-1945
1
1934-
1
1937-
1
1945-
1
1945-1953
1
1969-1974
1
1991-
1
Civil War, 2011-
1
Fredricksburg, 1862
1
Iraq War, 2003-2011
1
Revolution, 1775-1783
1
Vietnam War, 1961-1975
1
War of 1812
1
War on Terrorism, 2001-2009
1
World War, 1939-1945
1