1264 Barons War: Simon de Montfort, 6th Earl of Leicester, defeated English king Henry III.
1572 Gregory XIII, best known for his calendar reform, was elected pope.
1796 English physician Edward Jenner gave the first successful smallpox vaccination.
Tuesday, May 14, 2013
History Trivia - Edward Jenner gives first successful smallpx vaccination
1264 Barons War: Simon de Montfort, 6th Earl of Leicester, defeated English king Henry III.
1572 Gregory XIII, best known for his calendar reform, was elected pope.
1796 English physician Edward Jenner gave the first successful smallpox vaccination.
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