
Crick and Watson's DNA Molecular Model
1953
1953
1953
1901-1930
1920-1950
1918
circa 1900
1934
1935
1926-1932
1915-1918
1920-1925
1948-1953
1918-1920
1919
1901-1910
1912
1900-1910
1923
1897
1903
1907
1949
1949
1889
1925-1935
1915-1925
1920-1950
1920-1950
1920-1950
c.1912
1909-1910
1830 (original); 1967 (model)
1910-1926
1895-1904
1915
1948-1950
1914
1895
1896
1926
1948
1946
1943
1948
1904
1947
1935
1901
1928
circa 1910