1957
1950
1955
1956
1951
1954
1953
1950-1953
circa 1955
circa 1950
May 1953
1954-1955
1958
1950-1959
1950-1952
1951-1953
1955; 1830
1950-1951
circa 1953
2000-100 BCE
1953-1958
1959
1938 and 1951