The official currency used by the eurozone. It was was adopted Dec. 16, 1995, introduced to world financial markets Jan. 1, 1999 – replacing the ECU (European Currency Unit), and entered into circulation with banknotes and coins Jan. 1, 2002.
Only 17 of the 27 European Union members use the Euro. They are: Austria, Belgium, Cyprus, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Malta, Netherlands, Portugal, Slovakia, Slovenia, and Spain.
Lithuania and Latvia are expected to start using the euro in the next few years.