2009 in the European Union
overview of European Union-related events during the year of 2009
Events in the year 2009 in the European Union.
Incumbents
President of the European Council
Mirek Topolánek (Jan – May 2009)
Jan Fischer (May – Jun 2009)
Fredrik Reinfeldt (July – Dec 2009)
Commission President -
José Manuel Barroso
Council Presidency - Czech Republic (Jan – Jun 2009) and Sweden (July – Dec 2009)
High Representative
Javier Solana (to 1 December 2009)
Catherine Ashton (from 1 December 2009)
Events
January
January 1 - Czech Republic assumes the Presidency for the first time.
January 1 - Slovakia adopts the euro and becomes the 16th member of the Eurozone.
January 1 - Deadline by which goods in all member states of the European Union must be sold in metric units (this has already been completed everywhere, except in the United Kingdom). Road signs in the UK are unaffected (road signs in all other member states are already in metric units).
February
February 14 - Lithuania celebrates the millennium of its name.
May
May 7 - Inauguration of the Eastern Partnership in Prague.
June
June 4–7 - The 2009 European Parliament election takes place, the exact date varying depending on country. European People's Party form the largest group.
June 7 - A referendum on changing the Act of Succession is held in Denmark.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Mar 7, 2026. The linked authority identifier is Q2814339. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2009.
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This entry incorporates text from “2009 in the European Union” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.