Era
18th century
9
20th century
6
1949-
5
1945-
4
19th century
4
1760-1820
3
1775-1865
3
1953-1985
3
21st century
3
George III, 1760-1820
3
1732-1818
2
1870-1940
2
1945-1991
2
2001-
2
2001-2009
2
Since 1949
2
1603-1800
1
1763-1833
1
1821-1861
1
1856-1941
1
1865-1898
1
1867-1910
1
1884-1960
1
1907-1992
1
1912-1949
1
1914-1918
1
1945-1955
1
1945-1980
1
1947-
1
1953-
1
1974-
1
1975-
1
1976-
1
1980-1992
1
1989-
1
2000-2099
1
Since 1945
1
Since 1974
1
To 1865
1
Unification, 1990
1