Era
1946-
26
20th century
15
Revolution, 1775-1783
13
19th century
7
Civil War, 1861-1865
7
2021-
4
21st century
4
1947-2017
3
1995-
3
1809-1865
2
1838-1865
2
1929-1968
2
1959-
2
-1932
1
1732-1795
1
1751-1836
1
1759-1828
1
1764-1820
1
1768-1849
1
1783-1865
1
1786-1866
1
1799-1874
1
1805-1880
1
1808-1875
1
1815-1861
1
1818-1867
1
1856-1928
1
1865-1877
1
1865-1898
1
1890-1969
1
1897-1971
1
1909-1995
1
1917-2001
1
1918-2002
1
1931-2022
1
1933-1945
1
1937-
1
1945-1989
1
1948-
1
1954-
1
1967-
1
1969
1
1976-
1
1979-2013
1
2017-2021
1
2020
1
Appropriations and expenditures, 2013
1
Appropriations and expenditures, 2015
1
Capture by the British, 1814
1
War of 1812
1
more ...