
Molecular model of penicillin by Dorothy M Crowfoot Hodgkin, England, 1945
1945
1945
1830 (original); 1967 (model)
1839 (original); circa 1988 (replica)
1952-3
1945
1946
1945
1946
1955; 1830
1946
1946
1944
1944-1945
1946
2000-100 BCE
1938 and 1951
1903 (original); 1982 (model)
1990-96
circa 1945
1801-1892 (prepared); 1946 (element replaced)
1945-1946
1944
4000-2001 BCE
1944
1945
1990-95
1946-07-07
circa 1946
1952-3
1960-1979
6000-5000BCE
1944-12-01
1946-01-17
1946-09-10
1946-02-21
1944-07-26
1946-12-17
1945
1963-01
1946-09-12
1946-01-09
1944-10-10
1946-01-18
1945-03-23
1944
1944-09-23
1944
1946-09-11
1945-04-23
1945-05-15