History of Senior One: At the end of the Ming Dynasty, there appeared a large number of families in Taihu Lake who took the machine as the field and the shuttle as the thunder, and residents of Zhenze

History of Senior One: At the end of the Ming Dynasty, there appeared a large number of families in Taihu Lake who took the machine as the field and the shuttle as the thunder, and residents of Zhenze Town and villages near the town in Suzhou. There are a large number of families in Taihu Lake. They take machines as fields and shuttles as thunder. Residents of Zhenze town and village near Suzhou "try their best to profit from silk". Almost all men and women in Songjiang are engaged in cotton textile, and there are more than 1000 porcelain kilns in Jingdezhen.

The topic can be seen that different regions have different division of labor according to specific conditions, so it directly reflects the regional social division of labor.