Jiaozi is a currency issued in the Northern Song Dynasty in the first year of Renzong Tiansheng (1023).

1. The emergence of paper money is a major progress in the history of currency.

2. The appearance of paper money in the Northern Song Dynasty is not accidental. It is an inevitable product of social, political and economic development. The commodity economy developed rapidly in the Song Dynasty, and more currency was needed in commodity circulation. However, there was a shortage of copper coins at that time, which could not meet the demand in circulation.

3. The emergence of "Jiaozi" has facilitated business transactions and made up for the shortage of cash. It is a major achievement in the history of my country's currency. In addition, "Jiaozi", as the earliest banknote issued in China and even the world, also occupies an important position in the history of printing and printmaking, and is of great significance to the study of ancient my country's banknote printing technology.

Wazi, also known as "Goulan", "Wasi" and "Washe", is a performance venue. The emergence of tiles and the prosperity of the urban entertainment industry marked the growth of the ordinary citizen class and the vitality of urban life and urban economy.