Pensacola was the first European-inhabited settlement in what would later become the United States of America. The first European settlement in the continental United States was Pensacola, which was established on Santa Rosa Island by conquistador Don Tristan tristÃ¡n De luna Y arellano in. 1559
Alexander Fleming discovered penicillin from mold that contaminated a petri dish of Staphylococcus bacteria. Researchers at Oxford University experimented with the new mold that Alexander Fleming had discovered. Penicillin was actually discovered by mistake.
The story of penicillin - the first antibiotic used successfully to treat people with serious infectious diseases - begins with a bit of luck. Alexander Fleming, a British scientist, noticed in 1928 that mould had prevented the growth of bacteria in his lab. But the main plot of the story involves the rediscovery of penicillin 10 years later by an Australian scientist born one hundred years ago this year.