Great Plague

The Great Plague (also known as the Pestilence or just the Plague) was a worldwide pandemic of bubonic plague occurring in some form on every inhabited continent from 1634 to 1640. It is the most fatal pandemic recorded in human history, causing the approximate death of some 50-150 million people, around 25% of the world population at that time. Bubonic plague is caused by the bacterium Yersinia Pestis, which also causes septicaemic and pneumonic plagues.