Edward Jenner (1 ene 1749 año – 1 ene 1823 año)
Descripción:
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.
Añadido al timeline:
fecha:
1 ene 1749 año
1 ene 1823 año
~ 74 years