Spent this week reading a book about the Black Death http://en.wikipedia.org/wiki/Black_Death Very interesting book which first let you know how the people reacted on the plague back then, as we know it by the written material form back then. Then is let you know what the plague really was, and how they found the reason for the spreading, at least some of them, the plague was in fact spread by fleas, both human and rat fleas.






