Era
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1918-
1
1918-1932
1
1918-1933
1
1919-1933
1
1919-2010
1
1922-
1
1922-1945
1
1925-1963
1
1925-1968
1
1926
1
1927-1959
1
1929 -
1
1929 --
1
1929-1945
1
1929-1968
1
1930-
1
1933-
1
1933-2008
1
1934-
1
1936-
1
1939-1945 --
1
1941
1
1942-1949
1
1944-
1
1945
1
1945-1953
1
1948-1996
1
1949-
1
1950-1966
1
1952-
1
1955-1956
1
1959-
1
1961-1994
1
1964-
1
1971-1981
1
1981-2001
1
1989
1
1991-
1
1993-
1
20st century --
1
20th century
1
20the century
1
29th century --
1
9th amendment
1
George VI, 1936-1952
1
Pilitics and government --
1