Qidan was first recorded in Shuwei. Shu Wei made a special biography of Khitan and Kumoxi (also a northern minority in ancient China, originally belonging to the same branch as Khitan, later separated and later annexed by Khitan) for the first time when he recorded the contacts and contacts with the Northern Wei regime.

Since then, Northern History, Sui Shu, Old Tang Book, New Tang Book, Old History of the Five Dynasties, New History of the Five Dynasties, Tang Yao Hui, Conference of the Five Dynasties, Yuan Gui of Bookstore, General Examination of Documents, Conference of the Song Dynasty, etc. There are special records about the activities of the Khitans.

Extended data:

As for the origin of the Khitan nationality, it is said that there are two rivers flowing through the northern prairie. One ran down from the southern end of Daxinganling. The Khitans called it the Xilamulun River, also known as "Yellow Water", and the literature wrote "Yellow River". Another river comes from the western end of Yiwulu Mountain. It is called Laoha River, also called Tuhe River. The Khitan nationality rose in the Xilamulun River and Laoha River basins. The ethnic migration and integration in this area presents a very frequent and complicated state.

The Khitan nationality was originally a nomadic people. Liao Dynasty paid attention to national development. In order to safeguard the national, nomadic and agricultural nationalities were controlled separately, they advocated custom rule and created a bicameral political system.

Liao Dynasty (907- 1 125) was a feudal dynasty established by the Qidan nationality in the history of China. After nine emperors, it enjoyed the country for 2 10 years.

At the peak of Liao Dynasty, its territory reached the Sea of Japan in the east, Altai Mountain in the west, Ergon and Daxing 'anling in the north and Baigou River in the south of Hebei.

References:

Baidu encyclopedia-qidan nationality