This video shows Wang Yanhong explaining the Dashdawa Mongol history to the representatives of five Dashdawa Mongol surname groups. He says that initially, about 1,000 Ööld people arrived at Chengde in 1757, followed by another group two years later, the same year when the Anyuan monastery in Chengde was built. Some years later, however, about 500 people were dispatched to Xinjiang to protect the Qing-Russian border areas.