27 countries: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, UK; note - Canary Islands (Spain), Azores and Madeira (Portugal), French Guiana, Guadeloupe, Martinique, and Reunion (France) are sometimes listed separately even though they are legally a part of Spain, Portugal, and France; candidate countries: Croatia, Macedonia, Turkey

Independence:

7 February 1992 (Maastricht Treaty signed establishing the EU); 1 November 1993 (Maastricht Treaty entered into force)

National holiday:

Europe Day 9 May (1950); note - a Union-wide holiday, the day that
Robert SCHUMAN proposed the creation of the European Coal and Steel
Community to achieve an organized Europe

Constitution:

none

note: based on a series of treaties: the Treaty of Paris, which set up the European Coal and Steel Community (ECSC) in 1951; the Treaties of Rome, which set up the European Economic Community (EEC) and the European Atomic Energy Community (Euratom) in 1957; the Single European Act in 1986; the Treaty on European Union (Maastricht) in 1992; the Treaty of Amsterdam in 1997; and the Treaty of Nice in 2003; note - a new draft Constitutional Treaty, signed on 29 October 2004 in Rome, gave member states two years for ratification either by parliamentary vote or national referendum before it was scheduled to take effect on 1 November 2006; defeat in French and Dutch referenda in May-June 2005 dealt a severe setback to the ratification process; in June 2007, the European Council agreed on a clear and concise mandate for an Intergovernmental Conference to form a political agreement and put it into legal form; this agreement, known as the Reform Treaty, would have served as a constitution and was presented to the European Council in October 2007 for individual country ratification; it was rejected by Irish voters in June 2008, again stalling the ratification process; the Reform Treaty, more recently known as the Treaty of Lisbon, was again circulated for ratification, and by November 2009 was approved by all 27 countries; it is scheduled to come into effect on 1 December 2009

Legal system:

comparable to the legal systems of member states; first supranational law system