Introduction to Dachengtang: Dachengtang was built in the late Yuan and early Ming dynasties. It was formerly known as "Dachengtang". According to legend, it was founded by "Shen You", the father of Shen Wansan, a wealthy man in Jiangnan. At that time, it was the most influential pharmacy in Jiangnan. one. Shen You was originally a businessman, dealing in grain, silk, medicinal materials, etc. He knew the way of doing business well, based on "sincerity" and the way of doing things, so he named it "Dachengtang". Dacheng Hall is divided into three entrances, with a construction area of more than 800 square meters and more than 80 large and small houses. It is in the layout of "front store and back yard". The front store has a first counter, a second counter, and an accounting room for three people; First sword, second sword, third sword, four people; mixed with two people.