In ancient times, Inner Mongolia belonged to which country?

Before the Spring and Autumn Period and the Warring States Period, some northern nomads such as Xiongnu and Donghu lived a nomadic life in today's Inner Mongolia. In the late Warring States period, the territory of Yan, Zhao and Qin extended to today's Inner Mongolia, and the Huaxia people in the Central Plains began to settle in southern Inner Mongolia. For example, King Wuling of Zhao founded the site of Yunzhong City Site in Tuoketuo County, Hohhot. The "Zhao Great Wall" passes through Daqing Mountain in the north of Hohhot. After defeating the East Lake, Yan built the "Yanbei Great Wall" and built the right Beiping Department in the south of Chifeng City, Inner Mongolia, ruling Ningcheng. Qin and Han Dynasties established counties in today's Inner Mongolia. The Great Wall of Wan Li was built in the Qin Dynasty, connecting the Great Walls of previous dynasties, in order to defend the Huns. Southern Inner Mongolia, such as Yunzhong County, is an important frontier defense town. North of the Great Wall is mainly the territory of Xiongnu and Donghu, such as Wuhuan and Xianbei. After the establishment of the Western Han Dynasty, the Huns were a great threat to the peaceful life of the Han nationality: they invaded the border dozens of times, attacked the city and plundered the land, plundered property and a large number of people, which brought heavy disasters to the people in the northern part of the Western Han Dynasty. In the early years of the Western Han Dynasty, the Huns were evenly matched, but the Huns still invaded on a large scale. The emperor and people of the Western Han Dynasty invaded the territory of Xiongnu many times and were forced to send troops to fight back. During the Western Han Dynasty, Emperor Wudi won the Xiongnu War, and the Xiongnu forces moved northward and westward. Throughout the Han Dynasty and the subsequent Five Hu Sixteen Countries and the Northern and Southern Dynasties, the southern Huns and Donghu people gradually merged with the Chinese nation, forming the predecessor of today's Han nationality. In February of BC 129, the Huns entered Shanggu County and killed the officials. Wei Qing, a doctor of Tai Zhong, rode out of Shanggu County as a general, Sun Ao, a doctor of Tai Zhong, rode out of the county as a general, Gong Sunhe, a servant, rode out of Yunzhong County as a general, arrived without pomp, and Li Guang, a Wei general, rode out of Yanmen County as a general, each with ten thousand horses, and attacked the Huns with salt. From Wei Qing to Longcheng. 1 19 BC, Wei Qing attacked the Huns from Dingxiang and Huo Qubing from Dai Jun. Wei Qing Corps went 500 kilometers into the Xiongnu khanate, and the branch was defeated by the khanate. Wei Qing pursued Zhao Xincheng in Yinyan Mountain (outer Mongolia Hal and Southwest Forest). Huo Qubing Corps went deep into the desert 1000 kilometers, killing more than 70,000 people. Huo Qubing chased the wolf to Xushan (Mongolian Kent Mountain). The Han Dynasty established counties in today's Inner Mongolia. For example, Wuyuan County was set up in the Western Han Dynasty (before 127), and its jurisdiction was equivalent to Dalat Banner and Zhungeer Banner in East Bayannur League, Baotou City, Erdos City (Yikezhao League). Lu Bu, a famous general in the Three Kingdoms period, was born here. Southern Inner Mongolia was the territory of China from the Northern Dynasty to the Sui Dynasty. The early Tang Dynasty was the whole territory of China, and in the middle and late Tang Dynasty, most of eastern and southern Inner Mongolia was the territory of China. Both the north and the south of the desert were owned by the Tang Dynasty, which established Anxi viceroy and Anbei viceroy to manage it. During the Sui and Tang Dynasties, Turkic forces sometimes ruled the Mongolian Plateau. Mongolian tribes appeared in Song Dynasty; Later, it was the territory of Liao Dynasty and Jin Dynasty. In the Yuan Dynasty, this was the territory of China. After China was unified by Mongolia, Emperor Kublai Khan of China changed his title to Yuan Dynasty, directly under the jurisdiction of Zhongshu, Liaoyang, Lingbei, Gansu and Shaanxi provinces. Since the middle of13rd century, Inner Mongolia has once again become the territory of China. In the early Ming Dynasty, most of eastern and southern Inner Mongolia belonged to China. In the Qing Dynasty, it was the whole territory of China, and Inner Mongolia was named after Monan Mongolia. The Qing Dynasty unified Mongolia. The inner Mongolia was called Inner Mongolia, and the outer Mongolia was called Outer Mongolia, belonging to Yuan Dynasty. In the Qing Dynasty, General Wuli Yatai was established to administer Outer Mongolia, and Inner Mongolia was divided into six leagues and forty-nine banners, which were directly under the central government of the Qing Dynasty in China. After the Qing Dynasty, Inner Mongolia remained the territory of the Republic of China, and several provinces were restored. At the beginning of the Republic of China, it belonged to special areas such as Jehol, Chahar and Suiyuan, and all of them were changed to provinces. Before the founding of New China, Inner Mongolia Autonomous Region was established in central Inner Mongolia, and the name of the region has not changed. After 1978, Inner Mongolia expanded its jurisdiction to include northern Gansu, western Jilin and western Heilongjiang. There are 9 prefecture-level cities in the whole region: Hohhot, Baotou, Wuhai, Chifeng, Tongliao, Ordos, Hulunbeier, Wulanchabu and Bayannaoer. Xing 'an, Alashan and Xilin Gol League; In addition, there are two cities with separate plans, Manzhouli and Erenhot. It has jurisdiction over 1 1 county-level cities, 17 counties and 52 flags, including 3 autonomous flags of Oroqen, Ewenki and Molidawa Daur.