When did the Central Plains mainland government get the administrative power in Xinjiang?

Xinjiang belonged to the Western Regions in the Han Dynasty. In a narrow sense, the western regions refer to Yumenguan, the west of Yangguan and the east of Congling, that is, the east and south of Balkhash Lake and the vast areas of Xinjiang today. The western regions in a broad sense refer to all areas that can be reached in a narrow sense, including Central and Western Asia and the Indian Peninsula. Before Emperor Wu of the Han Dynasty, there was a lot of influence there, and some small countries north of Tianshan Mountain were controlled and enslaved by Xiongnu. The term "geographical location" refers to many countries and regions west of Yumenguan and Yangguan in China in ancient China literature. Under the influence of the Silk Road, the Western Regions refer to most of Xinjiang in China and parts of Central Asia under the jurisdiction of the administrative agencies arranged by the China government during the Han and Tang Dynasties. Located in the center of Eurasia, it is an important part of the Silk Road. Now we can still see its cultural characteristics in Xinjiang. This place plays an important role in the trade and cultural exchanges between eastern and western countries. Region: Western countries are mainly distributed in the northern margin of Tarim Basin, Turpan Basin and Junggar Basin, and rely on oases to make a living by using water dissolved in highlands. In addition, Tarim River and Lop Nur are the main agricultural and domestic water sources in the western region. Therefore, the prosperity of countries in this region is closely related to water. According to the judgment of some archaeologists, Loulan's disappearance due to river diversion and Lop Nur immigration is the main reason. (Li Jiangfeng, The Silk Road and the Eve of Climate Change,1992; China Higher Education Press, Historical Geography of China (P 125) At the same time, due to geographical factors, the rise and fall of countries in the western regions are easily affected by climate change. Since 1 1 century, the climate in East Asia has gradually cooled, and the local climate has also been strongly affected. Commercial exchanges in this region are more willing to be carried out through the Southern Silk Road, which gradually reduced the trade in the western regions and led to the decline of all countries. History: According to textual research, the basic national form appeared in the Western Regions in BC17th century, and merchants in Afghanistan traded lapis lazuli. In addition, Hetian jade produced in Khotan (now near Hotan County, Xinjiang, China) was also unearthed in Wuding Tomb of Shang Emperor, indicating that the local area was settled before13rd century. Around the 5th century BC, the western regions began to prosper gradually, and the countries in the western regions developed gradually by taking advantage of their geographical advantages of being located in the main roads between the east and the west, and their economic, cultural and moral values were greatly developed under the jurisdiction of the Western Han Dynasty. The western regions formed in the fifth century or so in the history of examinations and began to develop independently. History of Han recorded that there were more than 30 countries in the Western Regions at that time, so it was called "Thirty-six Countries in the Western Regions". Before Zhang Qian opened up the Western Regions, Xiongnu was the dominant force in the Western Regions. By the Han Dynasty, there were more than 36 countries under the jurisdiction of the administrative agency, the Western Regions Protection Office. The History of the Western Regions also recorded that the Western Regions were divided into more than 50 countries in the first six to five years. At the end of the Eastern Han Dynasty, countries in the western regions merged with each other, and at the beginning of the Jin Dynasty, several big countries such as Shanshan and Che merged. During the Northern and Southern Dynasties, the situation in the Western Regions changed again. Emerging Gao Changguo has defeated the western countries one after another and established a powerful country spanning most parts of Xinjiang. Except for a few countries, the western countries moved westward, which brought a prosperous culture to Central Asia. The "Western Regions Hufu" in Han Dynasty and Anxi and Beiting Hufu in Tang Dynasty are located in luntai county, northwest of Bayinguoleng. The junction of Yeyungou Township and Cedaya Township is 990 meters above sea level, with a distance of113km from Korla City and 58km from luntai county. Now it has become a tourist spot in Bayinguoleng, attracting many Chinese and foreign tourists. In the second year of Emperor Gaozu's Xuandi (the first 60 years), Wu Leicheng (formerly known as Luntai State) was established here as the political, economic, cultural and military center of the Han Dynasty, which was in charge of 36 countries in the western regions. At that time, the western regions were appointed by the emperor himself, and the replacement of 1 for three years (including extension and shortening) never stopped. According to Hanshu, there were 65,433 people in the Western Han Dynasty. At that time, Luntai was a battleground country. Duhufu is directly under the jurisdiction, equivalent to the current capital, and its power seems to be a little more than that of other oasis cities and nomadic countries. King Luntai was personally summoned by the emperor many times. There were other administrative, military and institutional institutions in the Han Dynasty, such as a captain who had been stationed in the garrison and a garrison commander. The local upper-class ethnic minorities have been awarded official positions such as king, marquis, general, minister, doctor and a captain, all of which are under the jurisdiction of the Western Regions. There are two ancient city ruins here: one is a small square city 1 km east of the township government, which has been washed away by the current. The city wall is only 1 m, and rammed soil is used as the base building. The building material is yellow sand moistureproof layer, and the lacing building material is Populus euphratica branches, which are stacked every 0.33 meters, and the circumference is about 100 meters. The city is littered with blue-gray pottery pieces with white moiré. Another ancient city site is located in the east of the township government/on the north side of Kloc-0/0 km highway. Locals call it a white mound, which is probably a beacon tower. 1928, Mr. Huang Wenbi, a famous historical and geographical expert in China, unearthed some pottery pots for storing grain at the above two sites, which were considered to be used by soldiers when the Western Regions Duhu House was established. Mr. Huang Wenbi also found another large site 300 meters northeast of Yeyungou Township, but it has been turned into farmland. In his book Archaeology of Tarim Basin, he wrote: "About half a mile south of Yeyungou Village, there is a high mound with a deep sand pile, reeds on it and red pottery fragments in the middle."