How has the European Union grown in the last 50 years?

Over the past 50 years, the European Union has expanded significantly, increasing its membership from six founding countries in 1957 to 27 member states today. This growth has included the accession of several Eastern European nations following the end of the Cold War, reflecting a commitment to political and economic integration. Additionally, the EU has deepened its internal policies, enhancing cooperation in areas like trade, security, and environmental standards. The introduction of the euro in 1999 further solidified economic ties among member states.