Medicine and also about Smallpox....look for: "The smallpox vaccine applying by Dr. Boylston" (1679-1766) in New England.
; "Lady Mary Wortley Montagu who in the year 1720 introduced inoculation of the smallpox into England from Turkey." "Anbry de la Motraye The Voyages and Travels vol.ii in 1727' too. Eastern people did know the vaccine, in the 10th century.