In the Jin Dynasty, because fishermen created fishing tools, the place where the river flowed into the sea was called blasphemy, so the downstream area of Songjiang was called blasphemy, and later it was changed to Shanghai, so Shanghai was called Shanghai for short. 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 was the fief of Huang Xie, the king of Chu, so it was called Shen.
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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 enter and leave, so foreign ships had to dock at Pushang, a tributary of Songjiang (located near the Bund to Shiliupu today).
In the third year of Xianchun in the Southern Song Dynasty (A.D. 1267), he set up a town in Shanghai Puxi Bank and named it 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.
Baidu Encyclopedia-Shanghai