
Molecular model of penicillin by Dorothy M Crowfoot Hodgkin, England, 1945
1945
1945
1945
1830 (original); 1967 (model)
1839 (original); circa 1988 (replica)
1952-3
1945
1946
1955; 1830
1938 and 1951
1944-1945
1946
1944
1946
2000-100 BCE
1946
1946
1990-96
1801-1892 (prepared); 1946 (element replaced)
4000-2001 BCE
circa 1945
1945-1946
1944
1903 (original); 1982 (model)
1945
1944
1944-1945
2050-1750 BCE
1990-95
1798 (original); 1977 (model)
1879 (1956)
1945-12-13
1944
28 February 1945
circa 1945
circa 1946
2000-100 BCE
1946
1935; 1958
1901-1930; 1963
1730; 1967
18 Janury 1948
1946-08-06
1945
1956-09
1946-01-07
1946-06-26
1946-10-20
1946-05-09
1949-11
1950-08