The economists tell us a neat story about the development of money. The primitive world, they tell us, begins in barter, develops in money, and matures in credit systems. The problem however, is that the historians and the anthropologists have been telling the economists, and telling them for over 100 years, that they can find no record of this development; in fact, the actual history seems to be just the opposite: first comes credit, then money, and finally barter systems. Widespread barter systems only come about after the collapse of monetary systems, and even then money is still used as a unit of account, as a way of equating dissimilar items… Money existed as a unit of account for debts for nearly two millennia before it existed as coins and currency.