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Photograph of the original culture plate of the fungus Penicillium notatum, made by the Scottish bacteriologist Sir Alexander Fleming whilst working at St. Mary's Hospital, Paddington, London. The image seen here was rephotographed 25 years after the discovery in 1928. Fleming was born on August 6th 1881 and died on March 11 1955. Fleming discovered in 1928 that secretions from Penicillium notatum destroyed colonies of the bacterium Staphylococcus. The secretion was named an antibiotic. Clinical trials and the commercial production of antibiotics did not occur until the Second World War. (KEYSTONE/SCIENCE PHOTO LIBRARY/STR) === , ===