Edward Jenner was an English physician born in 1749 who discovered vaccination for smallpox. He observed that dairy workers who had previously contracted cowpox did not later get smallpox. In 1796, he took material from a cowpox blister and inoculated an 8-year old boy, later exposing him to smallpox with no illness resulting. Jenner published his findings in 1798. By 1800, over 100,000 people worldwide had been vaccinated. Jenner's discovery led to the eradication of smallpox and saved millions of lives. He received honors but died in 1823 before being elected to the College of Physicians.