Era
20th century
4
19th century
3
Civil War, 1861-1865
3
1908-1973
2
1963-1969
2
1989-
2
Revolution, 1775-1783
2
1721-1793
1
1732-1799
1
1745-1797
1
1767-1845
1
1775-1783
1
1821-1894
1
1861-1865
1
1865-1877
1
1865-1898
1
1865-1918
1
1868-1963
1
1916-1995
1
1945-1975
1
1945-1989
1
1946-
1
1952-
1
1961-1969
1
1964-1979
1
1974-1977
1
1981-1989
1
1991-
1
2001-2009
1
21st century
1
Colonial period, ca. 1600-1775
1
Siege, 1781
1
Siege, 1863
1
Siege, 1864-1865
1
active 16th century
1