“The people who built the Great Wall were extraordinary. But Modu Chanyu built no wall. His power compelled the Han Empire to negotiate.” Historical Context — Following the confrontation at Baideng in 200 BCE, the Han court adopted the heqin settlement with the Xiongnu under Modu Chanyu. Primary sources: Shiji (史記), Chapter 110, Account of the Xiongnu; Hanshu (漢書), Chapter 94A, Account of the Xiongnu.