During the Spring and Autumn Period, it belonged to the eastern territory of Wu, and entered Vietnam at the end of the Spring and Autumn Period. During the Warring States period, it belonged to the State of Chu. It used to be the fief of Huang Xie, the king of Chu. The Huangpu River, which runs through modern Shanghai, is also called Chunjiang Shen, so Shanghai is not called Shen.

Shanghai is located at 3 1 14' north latitude and 12 1 29' east longitude, on the west coast of the Pacific Ocean, on the eastern edge of the Asian continent and at the front of the Yangtze River Delta. It is adjacent to the East China Sea in the east, Hangzhou Bay in the south, Jiangsu and Zhejiang in the west and the Yangtze River estuary in the north.

The average altitude in Shanghai is 2. 19 meters, and Dajinshan Island is the highest point in Shanghai, with an altitude of 103.7 meters. Shanghai's river network mainly includes Huangpu River, the main road flowing through the urban area, and its tributaries Suzhou River, Chuanyang River and Dianpu River.

City symbol:

Huhua 1986 was reviewed and approved by the Standing Committee of Shanghai Municipal People's Congress. Under the climatic conditions of Shanghai, Magnolia blooms very early. Before Tomb-Sweeping Day, it will be in full bloom. Magnolia is as white as jade, glittering and translucent. When it is open, it is blooming upwards and fragrant.

Shanghai Standard 1990 was deliberated and adopted by the Standing Committee of Shanghai Municipal People's Congress. Shanghai city symbol is a triangle pattern composed of magnolia, sand boat and propeller, which looks like a propeller of a ship, symbolizing that Shanghai is an advancing city.

The sand boat sailing in the center of the pattern is the oldest ship in Shanghai, symbolizing that Shanghai is a port city with a long history; The background of the sand boat is magnolia in full bloom in early spring, which shows the vitality of the city.