After humankind started to live together, as an other sign of interaction and communication, they learned to exchange own products with others as a necessity. Though, neither its own products were not enough for its hunger and appetite nor that production was sufficient for its omnivorous necessities. Commutation was fatal. When they started to grow by number, to increase the daily calorie needs to nurturing bigger brain; even commutation started to be inadequate. Several societies all over the world, independently started to develop a commercial system for settling humanize commutation as a not subjective way. Approximately at the same time they invented the money another revolutionary invention started to effect the human history.
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