-
-
-
-
-
-
-
In some areas the Bubonic Plague killed up to 90% of the population.
-
-
-
-
-
-
-
-
-
-
-
-
Scruvy is common in sailors.
-
Exposde them to cowpox virus. He rubbed the pus of cowpox onto the arm of a gardeners 8 year old son and then exposes him to smallpox, which he does not get.
-
-
They used Landsteiner's ABO blood typing technique.
-
-
-
-
Scientist successfully used the revived DNA to sequence the mammot's complete genome.
-
Rhazes discovered the difference between smallpox and measles.