BILLS OF EXCHANGE

With the revival of banking in western Europe, stimulated by the Crusades, written instructions in the form of bills of exchange, came to be used as a means of transferring large sums of money and the Knights Templars and Hospitallers functioned as bankers. (It is possible that the Arabs may have used bills of exchange at a much earlier date, perhaps as early as the eighth century). The use of paper as currency came much later.