Plagues and diseases reduced the Roman population. 3 major plagues were Great plague, Modern plague, and Justinian Plague killed almost of the Roman. They were all caused by bacterium helped the Roman Empire fall. The first plague was the Great plague, known as "Black Death". It was originated in China in 1334 and spread along the great trade routes to Europe. Second, the Modern Plague began in China in the 1860s and appeared in Hong Kong. Over 20 years, it appeared around the world by rats. The last pandemic, the Justinian Plague appeared in 541 AD and lasted over two hundred years. …show more content…
Modern plagues appeared around the world in the 19th and 20th centuries, Europe, spreading to Africa, Australia, some parts of Asia, and the Americas. Justinian Plague killed 25 million people. As plagues killed almost of Roman with deadly bacterium, so that it also reduced size of the Roman army. The Roman military undercut the Empire’s ability to police its borders against barbarian raids, invasions and migrations (Gabriel 6). With this disease, 2 emperors died and this was a problem in sustaining Rome overall. The death of emperor affected negatively to Rome. They were invaded by barbarians and allowed the empire to crumble due to