The Black Death

The Black Death, also known as the Bubonic Plague, was a disease in the Middle Ages, caused by the Bacterium Yersinia Pestis. It originated in Eastern Asia, and eventually spread to Europe. Causing painful sores, among other things, it killed as many as 65 million people, including a third of Europes population. The disease reoccuredd several times until the discovery of antibiotics in the 20th Century.