The name 'euro' was officially adopted on 16 December 1995. The 'euro' was introduced to world financial markets as an accounting currency on 1 January 1999, replacing the former European Currency Unit (ECU) at a ratio of 1:1 (US$1.1743). Physical euro coins and banknotes entered into circulation on 1 January 2002, making it the day-to-day operating currency of its original members.
- Eurozone crisis,
- Price convergence,
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