Alexander Fleming (unknown date)
Sir Alexander Fleming, Scottish bacteriologist, born August 6th 1881 & died March 11th 1955. Fleming discovered in 1928 that secretions from a fungus called Penicillium notatum destroyed colonies of the bacterium Staphylococcus sp. The secretion was named an antibiotic. Clinical trials & the commercial production of antibiotics did not occur until the Second World War.