“In 1928, Alexander Fleming at St. Mary's Hospital in London found mold in his cultures of staphylococcus bacteria ...” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.PENICILLIN is the answer to the New York Times crossword clue “In 1928, Alexander Fleming at St. Mary's Hospital in London found mold in his cultures of staphylococcus bacteria ...”. It was last seen in the puzzle of March 11, 2026, where it runs at 24 Across and fills 10 squares. It crosses 10 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.