The currency symbol for the euro is €. The euro is the official currency used by most of the European Union member countries, and it was introduced to the world in 1999, with physical coins and banknotes entering circulation in 2002. As a unifying currency, the euro aims to facilitate trade and economic stability among member nations. Its introduction represented a significant step toward European integration, simplifying transactions and travel for citizens of participating countries. The euro has since become one of the most widely used currencies globally.