sep 28, 1928 - Discovery of Penicillin by Alexander Fleming

Description:

Alexander Fleming discovered penicillin in September 1928 at St. Mary’s Hospital in London. Upon returning from a vacation, the Scottish bacteriologist noticed that an uncovered Staphylococcus petri dish had been contaminated with a mold (Penicillium). He observed that the mold secreted a substance destroying the surrounding bacteria, inventing the world's first antibiotic.

Added to timeline:

Date: