Zhijiang Dong Autonomous County, which belongs to Huaihua City, Hunan Province, is located in the west of Hunan Province. Tang Priest won't go down to the Western Heaven to learn Buddhist scriptures so early, but he will also go to Turpan (Flame Mountain).

It has been verified that Wuji is a Yanqi country recorded in historical materials, and now it is Karasha in the northeast of Tianshan South Road in Xinjiang. At the beginning of the Western Han Dynasty, it belonged to Xiongnu, and in the second year of the Western Han Dynasty, it was the capital of the western regions. In the early years of the Eastern Han Dynasty, shache attached. In the eighteenth year of Yongping in the Eastern Han Dynasty, Xiongnu attached. In the sixth year of the Eastern Han Dynasty, Ban Chao conquered and attached to the Han Dynasty. In the ninth year of Taiping Zhenjun in the Northern Wei Dynasty, Yanqi was defeated by the Northern Wei Dynasty, and the Northern Wei Dynasty set up a town here. Soon, Yan Qi was controlled by Rouran and Gao Che, and was crushed by disgust. Later, the Yanqi dragon regained power and the Yanqi country was revitalized. In the first year of Emperor Wudi's longevity, Wu Zetian established Yanqi as one of the following four towns in Anxi. After the Anshi Rebellion, the Tubo captured Yanqi. Soon, Yanqi belonged to the Uighur khanate in Mobei. Around the Yuan Dynasty, the Uighur kingdom that ruled Yanqi perished, and Yanqi no longer existed as a country.