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The European Union (EU) is a supranational political and economic union of 27 member states that are located primarily in Europe. The Union has a total area of 4,233,255 km² (1,634,469 sq mi) and an estimated population of more than 450 million as of 2025. The EU is often described as a sui generis political entity combining characteristics of both a federation and a confederation.

Containing 5.5% of the world population in 2023, EU member states generated a nominal gross domestic product (GDP) of around €17.935 trillion in 2024, accounting for approximately one sixth of global economic output. Its cornerstone, the Customs Union, paved the way to establishing an internal single market based on standardised legal framework and legislation that applies in all member states in those matters, and only those matters, where the states have agreed to act as one. EU policies aim to ensure the free movement of people, goods, services and capital within the internal market; enact legislation in justice and home affairs; and maintain common policies on trade, agriculture, fisheries, and regional development.

The EU was established, along with its citizenship, when the Maastricht Treaty came into force in 1993, and was incorporated as an international legal juridical person upon entry into force of the Treaty of Lisbon in 2009. Its beginnings can be traced to the Inner Six states (Belgium, France, Italy, Luxembourg, the Netherlands, and West Germany) at the start of modern European integration in 1948, and to the Western Union, the International Authority for the Ruhr, the European Coal and Steel Community, the European Economic Community and the European Atomic Energy Community, which were established by treaties. These increasingly amalgamated bodies grew, with their legal successor the EU, both in size through the accessions of a further 22 states from 1973 to 2013, and in power through acquisitions of policy areas. In 2020, the United Kingdom became the only member state to leave the EU; ten countries are aspiring or negotiating to join it. (Full article...)

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The Treaty of Lisbon or Lisbon Treaty (initially known as the Reform Treaty) is an international agreement which amends the two treaties which form the constitutional basis of the European Union (EU). The Lisbon Treaty was signed by the EU member states on 13 December 2007, and entered into force on 1 December 2009. It amends the Maastricht Treaty (also known as the Treaty on European Union) and the Treaty establishing the European Community (TEC; also known as the Treaty of Rome). In this process, the Rome Treaty was renamed to the Treaty on the Functioning of the European Union (TFEU).

Prominent changes included the move from unanimity to qualified majority voting in several policy areas in the Council of Ministers, a change in calculating such a majority to a new double majority, a more powerful European Parliament forming a bicameral legislature alongside the Council of ministers under the ordinary legislative procedure, a consolidated legal personality for the EU and the creation of a long-term President of the European Council and a High Representative of the Union for Foreign Affairs and Security Policy. The Treaty also made the Union's bill of rights, the Charter of Fundamental Rights, legally binding.

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Iberian Peninsula

Map credit: Robert Wilkinson

An 18th century map of the Iberian Peninsula illustrating various topographic features of the land. The Iberian Peninsula, or Iberia, is located in the extreme southwest of Europe, and includes modern day Spain, Portugal, Gibraltar and Andorra.

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Did you know?

...that Romania and Bulgaria became full members of the European Union on January 1, 2007?

...that the European Union's member states combined represent the world's largest economy by GDP, larger than the United States, the People's Republic of China, and Japan, the seventh largest territory in the world by area and the third largest by population after China and India?

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Copenhagen is the capital of Denmark and the country's largest city (metropolitan population 1,211,542 (2006)). It is also the name of the adjacent county. Copenhagen is the seat of the national parliament, the government, and the monarchy.

The original designation for the city, from which the contemporary Danish name is derived, was Kjøbmandehavn, "merchants' harbor". The English name for the city is derived from its German name, Kopenhagen. The element hafnium is named after the city's Latin name, Hafnia.

Copenhagen was founded around year 1000 by Sweyn I Forkbeard and his son Canute the Great. It was only a fishing village by the name of "Havn" (harbour) until the middle of the 12th century when it grew in importance after coming into the possession of the Bishop Absalon, who fortified it in 1167. The excellent harbour encouraged Copenhagen's growth until it became an important centre of commerce. It was repeatedly attacked by the Hanseatic League as the Germans took notice. In 1254, it received its charter as a city under Bishop Jakob Erlandsen.