This document provides an overview of the bubonic plague, also known as the Black Death. It describes how the plague originated in China in 1334 and spread along trade routes to Europe, killing an estimated 60% of the European population. The document outlines the symptoms of the plague such as fever, chills, and painful swelling of the lymph nodes. It also discusses historical attempts to treat the plague, the devastating impact it had, and current research being done to study the disease.