The Black Death, which is caused by Yersinia Pestis, originated in China and other Asian countries.According to one story, the Mongols intentionally spread the plague by catapulting their plague-ridden cadavers over the walls of Caffa in the Crimea. While this primitive act of biological warfare might have happened, it was probably not the reason for the actual outbreak of the plague.The Pax Mongolica, a well established trade route, had traders from Asia traveling to Eastern Europe for trade. Over time, traders who were infected spread the disease, rapidly spreading across Europe. The Mongols also burned thousands of Chinese and Middle Eastern books containing records of life and history in the pre-Mongol Era. It was said that so many books were thrown into the Euphrates River in Syria …show more content…
The Mongols basically created nations such as China, Russia, and Korea. They united nations such as Russia and China for the first time. Before the Mongols, Russia and China were both divided into numerous city-states led by weak, independent governments, therefore making it easy for the Mongols to take over. The Mongols also reinvigorated cross-eurasian trade. The Silk Road trading routes ,which had existed for 1,000 years, had fallen into disuse. They also started what historians call the "Pax Mongolica" - a century of peace among neighboring peoples who were all under Mongol rule. This peace allowed for the reopening of the Silk Road trading routes between China and Europe, increasing cultural exchange and wealth all along the trade paths. They also improved communication through Eurasia by developing a pony express-like system of way stations with horses and riders called the Yam, or Ortoo, system. People must have bronze passports to travel through the routes. At the height of power, the messengers on the Yam system in China alone had 20,000 workers and 50,000 fresh horses at