European Union events

Events

Austria, Finland, and Sweden join the European Union

1995

With the fourth enlargement, the 15 members covered almost all of Western Europe. The accession of these three countries forced the reorganization of the European Free Trade Assocation (EFTA) and broadened the diversity of population.

European Central Bank is inaugurated in Frankfurt, Germany

1998

The euro is adopted as the single currency

1999

The introduction of the euro in 1999 was a major step in European integration: more than 333 million EU citizens now use it as their currency.

National currencies are replaced by euro notes and coins

2002

Ten new Member States join the EU

2004

Czech Republic, Cyprus, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, and Slovenia.

EU welcomes Switzerland to the Schengen area

2008

Treaty of Lisbon enters into force

2009

Estonia joins the Euro area

2011

Croatia joins the EU

2013

Latvia adopts the euro as its currency

2014

Lithuania adopts the euro

2015

United Kingdom holds a Membership Referendum and votes to secede from the EU

2016