The Mongol army conquered hundreds of cities and villages and killed millions of people. One estimate is that about 11% of the world's population was killed either during or immediately after the Mongol invasions (around 37.75–60 million people in Eurasia).
B, after uniting the nomadic tribes of the Mongolian plateau, he conquered huge chunks of central Asia and China. His descendants expanded the empire even further, advancing to such far-off places as Poland, Vietnam, Syria and Korea.
