Era
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1930-
1
1933-
1
1933-2008
1
1934-
1
1936-
1
1939-1945
3
1939-1945 --
1
1940-
2
1941
1
1942-1949
1
1944-
1
1945
1
1945-
3
1945-1953
1
1945-1989
4
1946-
4
1948-1996
1
1949-
1
1949-1976
2
1950-1966
1
1952-
1
1955-1956
1
1959-
1
1961-1994
1
1964-
1
1971-1981
1
1981-2001
1
1989
1
1989-
2
1991-
1
1993-
1
1993-2001
3
19th century --
12
20st century --
1
20th century
1
20th century
64
20th century --
20the century
1
21st century
2
21st century --
17
21th century --
9
29th century --
1
9th amendment
1
George VI, 1936-1952
1
History --
3
Pilitics and government --
1