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.
We know a lot about how to deal with them because of one woman-Dorothy Hodgkin. Penicillin You'll have seen the video about penicillin, the drug which was discovered in 1928 by Alexander Fleming. This drug has saved countless lives from infectious diseases.