What are the payment tools in ancient and modern times

Primitive society is the use of shells to do as a unit of exchange, to the Shang Zhou with copper shells, that is, copper cast into the shell shape, the Spring and Autumn and Warring States period of the vassal states are also used to cast copper, but each country is not the same, there is a knife coins, wan coins, cloth coins, and so on. During the Qin Dynasty, Emperor Qin Shi Huang unified the world and started to standardize the system of weights and measures and the monetary system by making the same text in the book and the same track in the car. The half-tael coins were minted and standardized as round and square holes, with half-tael as the unit. The right to make money was put in the hands of the emperor. And today's society the traditional way of payment is of course cash, followed by bank transfers, card payments. Now various network companies also have a payment, more typical is WeChat, Alipay. There are also a variety of online lending companies and so on. There is also UnionPay flash payment.

Payment tools is to realize the economic activity of a transaction, it is with the emergence of goods bought and sold on credit. In credit buying and selling, money was initially used to pay debts. Later, it was used to pay ground rent, interest, taxes, wages, etc. The initial instrument of payment was money. A payment instrument is a vehicle used in the process of clearing and settlement of funds, either as a legal financial institution account document recording and authorizing the transmission of payment instructions and information originator, or as a financial institution-approved funds voucher legally signed by the originator of the payment that can be used for clearing and settlement. It is a guarantee to accelerate the turnover of funds and improve the efficiency of the use of funds.