Era
19th century
12
1809-1865
6
Civil War, 1861-1865
5
1800-1899
4
1605-1660
2
1783-1809
2
1783-1842
2
1792-1822
2
1861-1865
2
18th century
2
Revolution, 1775-1783
2
1564-1616
1
1700-1809
1
1724-1804
1
1732-1799
1
1737-1809
1
1743-1826
1
1756-1836,
1
1770
1
1771
1
1795
1
1796
1
17th century
1
1800 - 1899
1
1806-1873
1
1813-1855
1
1858-1919
1
1882-1945
1
1896-1980
1
1900-1999
1
1904-2005
1
1908-1973
1
1940-
1
1945-1989
1
1946-
1
1950-
1
1970-
1
1989-
1
2000-2099
1
20th century
1
21st century
1
Since 1989
1