Alexander Fleming Aug 1881-Mar 1945, born in Scoland, is the discoverer of penicillin in 1928. It was finally tested, purified and in use in 1939. Penicillin changed the course of medicine. Fleming was knighted in 1944 and given the Nobel Prize in 1945.
Noble Prize winner Alexander Fleming, born Aug. 6, 1881 was a great Scottish biologist and pharmacologist who made way for antibiotic medicines with his discovery of penicillin from the mould "Penicillium notatum".