Crick and Watson's DNA Molecular Model
1953
1953
1955
1955
1980-1950
1953
2000-100 BCE
1953
1955
1955
1955
circa 1955
1954
circa 1955
1955
1953
1955
1954
circa 1954
1954
1955
1954
1954
1955
1955
1954
1955
1955
1953
1955; 1830
1955
1954
circa 1953
1953
1955
1955
1953
1953
1903 (original); 1982 (model)
1955
4000-2001 BCE
1955
1954
1839 (original); circa 1988 (replica)
1990-96
circa 1955
circa 1953
circa 1955
1954
1954
1954