
Crick and Watson's DNA Molecular Model
1953
1953
1953
1830 (original); 1967 (model)
1951
1951
1953
circa 1953
1951
1951
1951-1953
1953
May 1953
1951-1953
1955; 1830
1952
1952
1952
1952
1951
1938 and 1951
2000-100 BCE
1951
1951
1953
1953
circa 1953
1951
1951
1990-96
1952
1952
1952
1953
1952
1951
1952-3
1839 (original); circa 1988 (replica)
4000-2001 BCE
1951
1953
1953
1951
1951
1953
1951
circa 1953
1903 (original); 1982 (model)
1951
8500-2000 BCE
1952