Before we go into the Black Death art, here's a quick rundown of the Bubonic Plague. Throughout the 14th century, the Black Death devastated Europe and Asia. The Medieval Bubonic Plague is caused by Yersinia pestis, a bacterium. Bubonic plague is spread from one host to the next by fleas infected with the virus from other diseased hosts. The 14th century was full of new shipping routes between Asia and Europe, giving rats and fleas easy accessibility to towns and cities everywhere. The Bubonic plague spread swiftly due to an absence of scientific understanding and sanitary measures, and 20 million people died as a result of the sickness. The usual symptoms of the sickness include high temperatures, chills, and nausea. Victims, on the other hand, are covered in boils that are ready to burst. After all of these symptoms, the person generally dies within two-seven days of being diagnosed.