Ancient maps of Tang dynasty

The territory of the Tang Dynasty was unprecedented. At its peak, its territory started from the Sea of Japan in the east, occupied by Annan in the south, the Aral Sea in the west and Lake Baikal in the north. It is the first unified dynasty in China since the Qin Dynasty that did not build the Great Wall of Hu.

In its heyday, the territory of the Tang Dynasty started from the Korean Peninsula in the east, to Hue in Vietnam in the south, to the Aral Sea and Khorasan in Central Asia in the west, and to the lower reaches of the Yenisei River in the north.

There were many ethnic minorities in the Tang Dynasty. In order to effectively manage the Turkic, Uighur, Tiele, Shiwei, Qidan, _ _ and other ethnic groups, six states, namely Anxi, Anbei, Anton, Annan, Chanyu and Beiting, as well as a large number of states and Kimi States belonging to the six states, were established respectively.

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The Tang Dynasty initiated the Daofu system in the history of chinese administrative division. In the first year of Zhenguan (627), Emperor Taizong divided the world into 10 roads: Guannei, Henan, Hedong, Hebei, Shannan, Longyou, Huainan, Jiangnan, Jiannan and Lingnan. However, these roads have no real power. In the Tang dynasty, the city level was mainly the general manager's office, the governor's office and our special envoy. Counties are under the government.

In the 14th year of Zhenguan (640), there were 360 states in China, which governed 1557 counties. During the Kaiyuan period, Shannan and Jiangnan were divided into east and west, and three roads, namely, Gyeonggi, Duji and Qianzhong, were added to form a fifteen-way pattern. There are counties under it, and there are counties under it. At the end of Kaiyuan, there were 328 counties in China, 1573 counties.

Baidu Encyclopedia-Tang Dynasty (Chinese historical dynasty)