there were no cities in the regions inhabited by the Mongols .Why
Answers
Explanation:
Eight hundred years ago, relatively small armies of mounted warriors suddenly exploded outward from the cold, arid high-elevation grasslands of Mongolia, and conquered the largest contiguous empire in history. Led by Genghis Khan and his sons and grandsons, the Mongols briefly ruled most of modern-day Russia, China, Korea, southeast Asia, Persia, India, the Middle East and eastern Europe. They reshaped world geography, culture and history in ways that still resound today. How did they do it? Among the forces at work: the Mongols’ fast horses and brilliant cavalry tactics; their openness to new technologies; and the political genius of Genghis himself. Now, a research group is looking into a possible other factor: climate change. The idea may have implications not only for our understanding of history, but for modern Mongolia and the wider world.
a yearly record of rainfall back to 658 AD. They saw that from 1211-1230—the exact time of the Mongols’ rise—central Mongolia saw one of its wettest periods ever. That time also was unusually warm, as shown by a 2001 paper from other Lamont researchers. Pederson and Hessl reasoned that the clement weather could have brought an unusual boom in grass production—and thus a boom in camels, yaks, cattle, sheep and other livestock that have always comprised the country’s main wealth. A glut of war horses–each Mongol cavalryman was said to have five or more—could have enabled fighters to travel like never before, along with a mobile meat supply. “The weather may literally have supplied the Mongols with the horsepower they needed to do what they did,” says Pederson. He stresses that the idea is still based on only a small sample, and more data is needed to draw firm conclusions. Pederson, Hessl and an interdisciplinary team including Mongolian scientists are now exploring the hypothesis, with a $1.4 million grants from the National Geographic Society and the U.S. National Science Foundation. The work will include not only further analyses of tree rings, but lake sediments, historical documents and other sources.