Era
20th century
73
19th century
26
1933-1945
12
21st century
10
1945-
9
1856-1939
6
18th century
5
1989-
5
1812-1870
4
1990-
4
Early modern, 1500-1700
4
1564-1616
3
Civil War, 1861-1865
3
16th century
2
1816-1855
2
1844-1889
2
1875-1961
2
1901-1981
2
1945-1989
2
1949-
2
1961-1997
2
1970-
2
Bombardment, 1945
2
Unification, 1990
2
Victoria, 1837-1901
2
1608-1674
1
1765-1947
1
1785-1859
1
1795-1821
1
1797-1874
1
17th century
1
1800-1859
1
1809-1882
1
1813-1865
1
1817?-1895
1
1819-1880
1
1824-1889
1
1865-1945
1
1875-1926
1
1882-1960
1
1884-1962
1
1886-1983
1
1887-1954
1
1888-1965
1
1891-1953
1
1896-1971
1
1903-1975
1
1906-1989
1
1909-1918
1
1911-
1
more ...