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.
Penicillin G was first discovered by the French Medical student Ernest Duchesne in 1896. Due to its instability, chemists of the time were unable to produce the drug for any use. As a result, penicillin was not extensively researched until Alexander Fleming began working with penicillin in 1928. Fifteen years later, the drug was mass produced.