Edward Jenner (1 jan 1749 ano – 1 jan 1823 ano)
Descrição:
A doctor in England in the late 1700s, he discovered that milk maids did not get smallpox, and used empirical research to discover that cowpox could be used as an inoculation against smallpox.
Adicionado na linha do tempo:
Data:
1 jan 1749 ano
1 jan 1823 ano
~ 74 years