Era
1820-1910
77
19th century
52
20th century
33
Civil War, 1861-1865
22
1800-1899
20
18th century
19
1900-1999
14
21st century
11
Siege, 1854-1855
7
1700-1799
6
1780-1845
6
Revolution, 1775-1783
6
1801-1886
5
1849-1919
5
1858-1948
5
1865-1915
5
2000-2099
5
1837-1901
4
1840-1889
4
Victoria, 1837-1901
4
1700-1899
3
1726-1790
3
1732-1799
3
1819-1861
3
1825-1864
3
1825-1910
3
1841-1930
3
1857-1919
3
1863-1928
3
1866-
3
1908-1975
3
1912-1990
3
1997-
3
-1799
2
1182-1226
2
1715-1789
2
1722-1788
2
1723-1780
2
1743-1826
2
1747-1833
2
1761-1831
2
1766-1817
2
1771 or 1772-1855
2
1775-1783
2
1777-1828
2
1786-1859
2
1800
2
1800 - 1899
2
1800-1846
2
1800-1864
2
more ...