14 ene 1796 año - Edward Jenner Makes a Smallpox Vaccine
Descripción:
Based around using the cousin to smallpox called cowpox, English doctor Edward Jenner used a little boy named Phillip to test his smallpox vaccine. Luckily for the boy it worked. It was not until the 1880's that the virus used for the smallpox vaccine was changed to a different virus.Añadido al timeline:
fecha:
14 ene 1796 año
Ahora mismo
~ 228 years ago
