because he was stupid
the smallpox vaccine.
edward jenner
Edward Jenner.
Edward jenner
Edward Jenner in 1749!!
smallpox
the scientific method is grate
Edward Jenner, was an English physician and scientist who was the pioneer of smallpox vaccine, the very first vaccine ever.
Edward Jenner - smallpox vaccine.
Dr. Edward Jenner created the term "vaccine."
in 1796,
Creating the smallpox vaccine