Molecular model of penicillin by Dorothy M Crowfoot Hodgkin, England, 1945
1945
1945
1839 (original); circa 1988 (replica)
1938 and 1951
1945
2000-100 BCE
4000-2001 BCE
circa 1945
1945
1934; 1947
1945
1952-3
1990-95
1903 (original); 1982 (model)
1945
1955; 1830
1945
6000-5000BCE
1960-1979
1879 (1956)
1945
1798 (original); 1977 (model)
1935; 1958
2050-1750 BCE
1888; 1984
1990-96
1945
1976; 1776
1962-05
8500-2000 BCE
1945
2000-1001 BCE
circa 1945
1991-1783 BCE
1701-1800; 1982
circa 3000 BCE
1962; 1934
2000-100 BCE
8500-2000 BCE
10000-5001 BCE
1975-1978
1901-1930; 1963
1920-1923; 1963
1501-1600; 1972
2800 BCE
1956-09
1988 (model); 1752 (original)
1960-1976 (model); 1890-1891 (original)
1862-1877; 1965; 1965
3000-2500 BCE
1985-11