Introduction to the Salt and Yancheng Exhibition Hall: The Salt and Yancheng Exhibition Hall introduces to visitors Yancheng's great contribution to China's salt industry: as early as the Spring and Autumn Period, the ancestors of the Yancheng area took advantage of the "offshore benefits" to "boil the sea into salt" During the Qin and Han Dynasties, cities sprung up on the southeast coast due to salt production. Yancheng was also established as Yandu County in the fourth year of Han Dynasty (119 BC) due to its prosperous fishing and salt production. In the Eastern Jin Dynasty, it was renamed because "the city is surrounded by salt fields" For Yancheng. During the Tang and Song Dynasties, Yancheng developed into an important salt production center in southeastern China... It can be said that the salt production industry in Yancheng has historically made a huge contribution to China's national finance and people's production and life.