In 22 1 BC, Ying Zheng, king of Qin, unified the six countries, calling himself the "first emperor", hoping that the Daqin mountains and rivers he created would last forever and the supreme imperial power would be passed down from generation to generation. When he traveled eastward, he found a beautiful place at the junction of wuyue, where businessmen and farmers gathered to buy and sell business. This is the so-called "water market". I also heard from the Yin and Yang family that the feng shui scenery here is very beautiful, which is the weather of the emperor. What worries him even more is that this place even has a nursery rhyme that "the water market is the son of heaven" for generations.
"The first emperor hated his strong king, causing more than 100,000 prisoners to dig their soil and change it to' prison volume', which was also done with fists." This place in Youquan County has become a lake and valley because of the slow subsidence of the terrain. Some archaeologists believe that Dianshan Lake in the west of Shanghai today is an ancient county and sank to the bottom of the lake in ancient times. 1958, at the bottom of Dianshan Lake, archaeologists excavated Neolithic stone knives, Shi Mao, stone plows, stone spinning wheels and other artifacts, pottery pieces such as sand red pottery, black pottery and embossed pottery, as well as more than 400 precious foreign objects such as expensive editions and bronze cymbals during the Warring States period.