The Euro (€) is the currency used in the European Union (EU). It was introduced in 1999, with physical Euro banknotes and coins appearing in 2002, intended to facilitate trade and travel among member states. The Euro is used by 19 of the 27 EU countries, forming the Eurozone. It aims to create a stable and integrated economy, allowing for easier and more efficient transactions across borders. The European Central Bank manages the Euro, addressing monetary policy and ensuring price stability. Its introduction marked a significant step toward economic integration within Europe.