Euro (banking code: EUR, currency sign: €, plural euro) is the currency of 16 EU countries, known as Eurozone. It is used as the official currency in the
Currency is a unit of exchange which facilitates the exchange of goods and services. Money emerges as a tool that is necessary for enabling the circulation of relationships between people. During its development money adopts a different outlook, passing through barter, commodity money, "measured" (metal) money, gold, securities and credit money. Functions that money performs in modern times are: a means for calculating values, means to address, means of payment, a means of accumulation, means for transferring values, means for the valuation of goods and services.