Era
20th century
98
Civil War, 1861-1865
13
19th century
11
Revolution, 1775-1783
11
1861-1865
5
1809-1865
4
1956-
4
21st century
4
Colonial period, ca. 1600-1775
4
1732-1799
3
1775-1783
3
1783-1865
3
1929-1968
3
1946-
3
1948-
3
1954-
3
1955-
3
1989-
3
2001-2009
3
French and Indian War, 1754-1763
3
1736-1809
2
1743-1826
2
1750-1815
2
1799-1883
2
1887-1940
2
1912-1976
2
1933-1945
2
1936-2021
2
1945-
2
1945-1953
2
1945-1989
2
1951-
2
1964-
2
1981-1989
2
To 1775
2
-1865
1
1718-1747
1
1753-1784
1
1757-1804
1
1760-1789
1
1773-1841
1
1783-1789
1
1783-1809
1
1783-1875
1
1797-1874
1
1799-1889
1
1800-1867
1
1800-1895
1
1800-1899
1
1801-1809
1
more ...