In the eighth year of Wude in Tang Gaozu (625), the administrative office of Yangzhou was moved from Danyang to Jiangbei, which completed the basic unification of the name division and geographical location between Yangzhou in history and Yangzhou today, and became a prosperous Yangzhou city in history, namely Guangling District, which is the old city of Yangzhou today. In the first year of Tianbao in Xuanzong of Tang Dynasty (742), Yangzhou was changed to Guangling County. In the first year of Gan Yuan, Tang Suzong (758), Guangling County was rebuilt as Yangzhou.

Guangling, as the first name of the ancient city of Yangzhou, is now the main city under the jurisdiction of Yangzhou City, Jiangsu Province. Located in the middle of Jiangsu Province, at the intersection of the Yangtze River and the Beijing-Hangzhou Grand Canal, east longitude119 26', north latitude 32 24'. Located in the economic circle of the Yangtze River Delta, with an administrative area of 34 1.96 square kilometers, it is one of the ancient cities with relatively well-preserved historical features in China, and is the core area that embodies Yangzhou's ancient civilization.

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The historical development of Yangzhou;

During the Spring and Autumn Period, the northwest area of Yangzhou City was now the Han State. In 486 BC, Fu Cha, the king of Wu, built Seoul on Shugang, and dug Hangou, one of the earliest artificial canals in China's history, connecting the Jianghuai River system, which was the beginning of Yangzhou's development.

In 3 19 BC, Chu Huaiwang built Guangling City on the basis of Seoul, and the name of Guangling began. After Qin Shihuang unified China, Guangling County was established. During the Han Dynasty, Yangzhou was now called Guangling and Jiangdu. Liu Bi, the king of Wu, won Guangling and established the State of Wu. With the advantage of facing the sea and facing the mountain, the two "official selling" industries of salt and iron have developed rapidly. Building water conservancy projects, opening up salt rivers and planting rice and mulberry have further laid the water transport foundation of Guangling.

During the Three Kingdoms period, the wars between Wei and Wu continued, and Guangling was a military stronghold in the Jianghuai area. ? During the Northern and Southern Dynasties, Guangling suffered from repeated wars and was reduced to "Wuhu City" several times. The Northern Zhou Dynasty changed Guangling to Wu Zhou. ? In 589 AD, Sui changed Wu Zhou to Yangzhou, and then to Yanzhou. In 626 AD, Tang Fu called Yangzhou; In 742 AD, it was renamed Guangling County; In 758, it was renamed Yangzhou. Since then, the name Yangzhou has been dedicated to the local area. ?

During the Yuan and Ming Dynasties, the economic development of Yangzhou accelerated, and more and more foreigners came to Yangzhou for business, missionary work, politics and settlement. 1556, the Ming dynasty built a "new city" in Yangzhou. From the Ming and Qing Dynasties to the Republic of China, Yangzhou was a city connected with the old and the new, and the city site was the old part of Guangling District.

Baidu Encyclopedia-Yangzhou (a prefecture-level city in Jiangsu Province)?