The main currency used in the Eurozone is the euro (€). The euro was introduced as an electronic currency for banking and financial transactions in 1999 and became physical banknotes and coins in 2002. The Eurozone consists of 19 of the 27 European Union (EU) member states, which collectively adopted the euro as their official currency. The euro facilitates easier trade, travel, and investment among member countries by eliminating exchange rate risks. It is managed by the European Central Bank and serves as a significant currency on the global stage.