The black death.
Medlen
J
J
D004196:Disease Outbreaks / Q000266:history*; D005060:Europe / Q000453:epidemiology; D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049691:History, Medieval; D006801:Humans; D010930:Plague / Q000453:epidemiology / Q000266:history*; D012426:Russia / Q000453:epidemiology; D006113:United Kingdom / Q000453:epidemiology