The European Union (EU) is a political and economic union of 27 member states that are located primarily in Europe.

The European Union has 24 official languages: Bulgarian, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian, Irish, Latvian, Lithuanian, Maltese, Polish, Portuguese, Romanian, Slovak, Slovene, Spanish, and Swedish. Important documents, such as legislation, are translated into every official language and the European Parliament provides translation for documents and plenary sessions.

Due to the high number of official languages, most of the institutions use only a handful of working languages. The European Commission conducts its internal business in three "procedural languages": English, French, and German. Similarly, the Court of Justice of the European Union uses French as the working language, while the European Central Bank conducts its business primarily in English.

The European Day of Languages is held annually on 26 September and is aimed at encouraging language learning across Europe.

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