Metals have been used as money throughout history. As Aristotle observed, the various necessities of life are not easily carried about; hence people agreed to employ in their dealings with each other something that was intrinsically useful and easily applicable to the purposes of life—for example, iron, silver, and the like. The value of the metal was at first measured by weight, but in time governments or sovereigns put a stamp upon it to avoid the trouble of weighing it and to make the value known at sight. The use of metal for money can be traced back to Babylon ...(100 of 10400 words)