What all our money is to get in our lives. We hope we have more of it, we all know it, but when we see it, either in the form or in the coin, cheques notes. It's hard to imagine how manage people who have no money. In ancient times, the history of mankind, people used to direct exchange of goods. There is one thing they will exchange their things, and there is a need for them. For example, they will be a tool for food. This method of exchange, which is called "barter", has many disadvantaged. Certain commodities may be difficult to carry out, they may not be the last dragon, or may be impossible large divided into smaller units. It can be very difficult to know what it is worth, compared with other commodities.
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