The Black Death: A Timeline of the Gruesome Pandemic - History The Black Death: A Timeline of the Gruesome Pandemic - History Posted: 16 Apr 2020 12:00 AM PDT Nearly 700 years after the Black Death swept through Europe, it still haunts the world as the worst-case scenario for an epidemic. Called the Great Mortality as it caused its devastation, this second great pandemic of Bubonic Plague became known as the Black Death in the late 17th Century. Modern genetic analysis suggests that the Bubonic plague was caused by the bacterium Yersinia pestis or Y. pestis . Chief among its symptoms are painfully swollen lymph glands that form pus-filled boils called buboes. Sufferers also face fever, chills, headaches, shortness of breath, hemorrhaging, bloody sputum, vomiting and delirium, and if it goes untreated, a survival rate of 50 percent. During the Black Death, three different forms of the plague manifested across Europe. Below is a timeline...