On May 14, 1796
In a small villiage called Berkely, in Gloucestershire.
On May 14, 1796I think that it was in 1800's I'm not sure
Edward Jenner invented the smallpox vaccine, which is quite different from inventing smallpox - the actual disease was not invented by some mad scientist, it evolved naturally. Jenner lived in England.
smallpox
Edward Jenner.
Edward Jenner - smallpox vaccine.
Creating the smallpox vaccine
in 1796,
the smallpox vaccine.
He was famous for for creating Smallpox Vaccine.
Through a cow
The first vaccine invented was for smallpox created by Edward Jenner in 1796