From the Latin word ‘moneta’, money is any item that is generally accepted as payment for goods and services and repayment of debts, such as taxes, in a particular region, country or socio-economic context. Its onset dates back to the origins of humanity and its physical representation took on very varied forms until the appearance of metal coins. The banknote, a typical representation of money, appeared in the 17th century, and has since experienced great development and growth. Currently, electronic systems allow payments without the need to deliver physical money (banknotes or coins). Money is considered to have three basic functions: unit of account, medium of exchange and store of value.