1960
1950-1960
1950-1959
1955
1955-1960
circa 1953
(1962); 1982
1962
1957
1961
1938 and 1951
1950
1951
1965
1950-1951
2000-100 BCE
circa 1950
1953
1963
1958-1965
1949
1959
1964
1953-1958
1958
1956
circa 1964
1949-1966
May 1953
circa 1960
1953-1960