European Union – enlargement, the euro and economic scale

GeographyRegions & CountriesAges 16–17

A hand-drawn map of Europe shows the EU's member states. Drag the year slider from 1957 to 2025 to watch the union grow through each round of accession, see which countries use the euro, and find when the United Kingdom left the EU in 2020. Switch the data layer to colour the map by accession round, by population, or by 2022 GDP; click a country to see its population, GDP, accession year and the year it adopted the euro.