Introduction to the Mongolian history scroll: The 206-year historical scroll from the birth of Genghis Khan to the withdrawal of the Mongolian rulers from the Yuan Dynasty, retreat to the Mobei grasslands, and the establishment of the Northern Yuan regime, truly reflects the most glorious historical facts and achievements of the Mongolian nation. The historical process of reunifying the Chinese nation and accelerating the development of world civilization. The scroll is the longest in the world.