Edward Jenner humans a cowpox vaccine against smallpox. For example, Dorset farmer Benjamin Jesty successfully vaccinated and presumably induced immunity with cowpox in his wife and two children during a smallpox epidemic in 1774, but it was not until Jenner's work that the procedure became widely understood. Jenner may have been aware of Jesty's procedures and success. A similar observation had also been made in France by Jacques Antoine Rabaut-Pommier in 1780. Noting the common observation that milkmaids were generally immune to smallpox, Jenner postulated that the pus in the blisters that milkmaids received from cowpox (a disease similar to smallpox, but
Caitlyn Jenner new personal best time and won the gold medal with a world-record score of 8,618 points. Olympic world record performance: After the event, Jenner took an American flag from a spectator and carried it during the victory lap, starting a tradition that is now common among winning athletes. Abandoning vaulting poles in the stadium, with no intention of ever competing again, Jenner stated that: "In 1972, I made the decision that I would go four years and totally dedicate myself to what I was doing, and then I would move on after it was over with. I went into that