Shanghai, referred to as "Shanghai" or "Shen" for short, is a provincial administrative region, municipality directly under the Central Government, national central city, megacity and core city of Shanghai metropolitan area in People's Republic of China (PRC), and is an international economic, financial, trade, shipping and scientific and technological innovation center of China approved by the State Council.

As of 20 19, the city has 16 districts with a total area of 6340.5 square kilometers and a built-up area of 1237.85 square kilometers. 0: 00 June 2020 165438+ 10 1 resident population is 24.8709 million.

Shanghai is located in the east of China, at the mouth of the Yangtze River, bordering the East China Sea in the east and Jiangsu and Zhejiang provinces in the northwest. It is bounded by east longitude12052'-12212' and north latitude 30 40'-3 1 53'. During the Warring States period, Shanghai was a feudal city, so it was nicknamed Shen.

In the Jin Dynasty, because fishermen created the fishing tool Hu, the place where the river flowed into the sea was called Hu, so the lower reaches of Songjiang River was called Hu, and later it was changed to Shanghai, so Shanghai was called Shanghai for short.

In 2020, Shanghai's GDP reached 3,870.058 billion yuan, an increase of 1.7% over the previous year at comparable prices. ? [8] 20191215, ranking among the top China city brands 10 of China Academy of Social Sciences.

Shanghai belonged to the State of Wu in the Spring and Autumn Period. The Warring States period belonged to Yue State and Chu State successively. During the Spring and Autumn Period and the Warring States Period, Shanghai Beach was the fief of Shen Jun, the king of Chu, so it was called "Shen". In the Jin Dynasty, because fishermen created a fishing tool "Hu", the place where the river flowed into the sea was called "Hu", so the lower reaches of Songjiang were called "Hu", and later it was changed to "Hu", so Shanghai was called "Shanghai" for short.

In the tenth year of Tang Tianbao (AD 75 1 year), Shanghai belonged to Huating County (now Songjiang District). In the second year of Chunhua in the Northern Song Dynasty (AD 99 1 year), due to the continuous shallow siltation in the upper reaches of Songjiang, the coastline moved eastward, and it was inconvenient for large ships to get in and out, so foreign ships had to berth at Shanghai Pu, a tributary of Songjiang (Huangpu River near the Bund to Shiliupu today).

In the third year of Xianchun in the Southern Song Dynasty (AD 1267), he set up a town in Shanghai Puxi Bank, named "Shanghai Town". In the 29th year of Yuan Dynasty (AD 1292), the central government set aside Shanghai Town from Huating County and approved the establishment of Shanghai County, marking the beginning of the establishment of Shanghai.