Germ theory and vaccines
French chemist and microbiologist (1822-1895).
He proved that microbes cause disease and spoilage, invented pasteurization, and developed vaccines for anthrax and rabies — famously saving a boy bitten by a rabid dog. His work founded modern medicine's fight against infection.
Louis Pasteur is one of the historical characters you can play as in Rubicon, a trivia game where you answer in your own words and an AI judge reads what you meant. Louis Pasteur is filed under Human Body & Medicine, and is strongest at Human Body & Medicine and Natural Sciences.