International status and usage of the euro

The international status and usage of the euro has grown since its launch in 1999. When the euro formally replaced 12 currencies on 1 January 2002, it inherited their use in territories such as Montenegro and replaced minor currencies tied to the pre-euro currencies, such as in Monaco. Four small states have been given a formal right to use the euro, and to mint their own coins, but all other usage has been unofficial outside the eurozone (the EU states who have adopted the euro). With or without an agreement these countries, unlike those in the eurozone, do not participate in the European Central Bank or the Euro Group.

Its international usage has also grown as a trading currency, acting as an economic or political alternative to using the United States dollar. Its increasing usage in this sense has led to its becoming the only significant challenger to the US dollar as the world's main reserve currency.

Several European microstates outside the EU have adopted the euro as their currency. For EU sanctioning of this adoption, a monetary agreement must be concluded. Prior to the launch of the euro, agreements were reached with Monaco, San Marino, and Vatican City by EU member states (Italy in the case of San Marino and Vatican City, and France in the case of Monaco) allowing them to use the euro and mint a limited amount of euro coins (with their own national symbols on the obverse side) to be valid throughout the Eurozone. However, they cannot print banknotes. All of these states had previously had monetary agreements to use yielded eurozone currencies. The Vatican and San Marino had their currencies pegged to the Italian lira (Vatican and Sammarinese lira) and Monaco used the Monegasque franc, which was pegged to the French franc. Between 2010 and 2012, new agreements between the EU and Monaco, San Marino and the Vatican City came into force.

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