The Bubonic Plague
In the 14th century CE, a new disease arrived in Europe. The disease was spread by infected fleas
and rats and carried on ships. It was nicknamed the "Black Death" for the distinct darkening of the skin
that occured before a person sucumbed to the disease. The disease spread so quickly, it became an
epidemic affecting millions of people. The plague is one of the reasons that feudal system in Europe
The map (left) overviews how the disease spread across three continents.