The evolutionary history of human beings has demonstrated the essence of money. Coins were one of the first currencies used in the economic development of the Incas, Türkiye, Greeks, Romans, Chinese and Spanish societies. However, the influx of silver and gold coins did not bring wealth; it only increased the price of goods. Money was only worth the trust people placed in it, rather than the material it was made of, metal or paper. After all, Casa Medici was an example of a bank that demonstrated the success of credit policy when usury was an immoral belief in the Christian world. This made them the leading bankers of the Renaissance