10 Accidental Discoveries That Changed the World
RD.COM Knowledge Facts From penicillin and anesthesia to saccharin and silly putty, chance played a major role in some of the world’s great inventions. kwanchaichaiudom/iStock Penicillin Inventor: Alexander FlemingYear: 1928What Happened: Halfway through an experiment with bacteria, Alexander Fleming up and went on vacation. Slob that he was, he left a dirty petri dish in…