The Credit?! (5)

People knew how to trade thousands of years ago and even invented coins as their medium of exchange. One disadvantage to coins, as people soon found out, was that they were difficult to carry while traveling. They needed something more convenient to bring with them. Thus the idea of deposit came up. They deposited their coins to a center later called "banks". Then they could just carry a paper claiming "this man/woman has a particular amount of coins in for example California".

This is the most basic concept of the credit. People deposit an amount of wealth (coin, money, etc) and get deposit papers. But societies are more complex as to credit meeting their requirements via simple deposit. Several questions came up, one of which was, "How much does a particular service cost and how to bring it into trading?"