
I. Distribution and Migration of the Khitan People in the Liao Dynasty
The Liao Dynasty (907–1125 AD) was dominated by the Khitan people, whose core territory was the West Liao River basin (modern southeastern Inner Mongolia). Through warfare, Liao Taizu, Yelü Abaoji, captured large numbers of Han Chinese populations, relocating them to the Luan River basin (from modern western Liaoning to northern Hebei). He implemented a settlement policy of "building walled cities and dividing them into wards and markets." During the reign of Liao Taizong, the acquisition of the Sixteen Prefectures of Yan and Yun (from modern Beijing to Datong in Shanxi) from Shi Jingtang allowed Khitan influence to penetrate deep into the North China Plain. The Khitan nobility adopted a policy of "governing according to custom," implementing the prefecture-county system in Han-inhabited areas while retaining the tribal system on the steppe, thus forming the dual administrative system of the Northern and Southern Divisions.
II. The Ethnic Minority Landscape within the Northern Song Realm
The Northern Song Dynasty (960–1127 AD) primarily contended with three major ethnic minority regimes:
III. Driving Factors behind Ethnic Migrations
IV. Cultural Integration and Identity
The Liao Dynasty implemented a dual-track system: "governing the Khitans with their own institutions and administering Han Chinese with Han systems." Khitan nobility widely adopted Han culture; for instance, Emperor Shengzong adopted Han surnames and implemented the imperial examination system. The Northern Song maintained peace with the Liao and Western Xia through its annual tribute policy, which objectively fostered economic and cultural exchange in ethnically mixed areas. These interactions laid the groundwork for the unified multi-ethnic state of the subsequent Yuan Dynasty.