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.
It is the mould that saved millions of lives by producing the first ever known modern antibiotic, the penicillin. The discovery of penicillin from the fungus Penicillium chrysogenum (then known as Penicillium notatum) by Sir Alexander Fleming in 1928, perfected the treatment of bacterial infections. The name Penicillium comes from the resemblance of the spore producing structures (conidiophores) of the fungus to a paintbrush (penicillus is the Latin word for paintbrush).