Era
20th century
407
1900-1999
167
19th century
162
21st century
59
1800-1899
35
2000-2099
29
1800-1999
26
18th century
26
1945-
21
1856-1915
20
1859-1952
14
1865-1918
10
1933-1945
10
1900-2099
9
1980-
9
1700-1899
8
1758-1843
8
1900 - 1999
8
1918-1961
8
1743-1826
7
1946-
7
2009-2017
6
1783-1865
5
1806-1815
5
1870-1952
5
1880-1968
5
1918-1945
5
1851-1931
4
1877-1965
4
1910-1946
4
1919-1933
4
1929
4
1929-1968
4
1981-1989
4
2009-
4
British occupation, 1765-1947
4
Civil War, 1861-1865
4
To 1865
4
To 1964
4
1700-1799
3
1800-1873
3
1811-1900
3
1826-1906
3
1859-1909
3
1885-1950
3
1889-1974
3
1906-1975
3
1906-1984
3
1908-1976
3
1913-2005
3
more ...