
Crick and Watson's DNA Molecular Model
1953
1953
1775
1920-1950
1878-1879
1969
1771-1830
1920-1960
1392
1918
1690
1988
1955
1997
1850
1918-1920
1870
1945-1955
circa 1919
1847-1848
circa 1885
1945
1860-1910
1890-1935
1880-1920
1986
1801-1900
1946-1950
before 1857
1501-1700
1965
1925-1935
1820-1900
1930-1960
2006
1879-1896
1945-1965
1991-2002
1933-1959
1840
1870-1888
1680
1987
1953-1958
1860-1900
1852
1843
1960
1879
1960