European Currency Unit European Currency Unit The European Currency Unit (₠ or ECU, ) was a basket of the currencies of the European Community member states, used as the unit of account of the European Community before being replaced by the euro on 1 January 1999, at parity. The ECU itself replaced the European Unit of Account, also at parity, on 13 March 1979. The European Exchange Rate Mechanism attempted to minimize fluctuations between member state currencies and the ECU. The ECU was also used in some international financial transactions, where its advantage was that securities denominated in ECUs provided investors with the
International status and usage of the euro Cypriot pound, also decided to adopt the euro. The base areas are an overseas territory of the United Kingdom, an EU member state which itself does not use the euro, but these bases are outside of the EU and under military jurisdiction. Their laws and currency have been aligned with those of the Republic of Cyprus, leading to the euro's adoption in the two areas. Montenegro and Kosovo have also used the euro since its launch, as they previously used the German mark rather than the Yugoslav dinar. Unlike the states above, they do not have a formal agreement with