
Crick and Watson's DNA Molecular Model
1953
1953
1953
1951
1948-1953
1955
1950-1952
1951-1953
1955
1949
1948-1950
1950
1953
1953
1948
1839 (original); circa 1988 (replica)
1949
1948-1953
1948
1955
1955
1948
circa 1955
1950
1950
1951
1955
circa 1955
1952
1954
1952
1954
1952
1954
1952
1951
1955
1951
1953
circa 1950
1950
1951
1950-1953
1938 and 1951
May 1953
2000-100 BCE
1953
1948
1955; 1830
1949
1954-1955