6 December 1992

On December 6, 1992, the European Union was formally established through the Maastricht Treaty, which was signed by member countries. This treaty marked a significant step toward economic and political integration in Europe, creating a unified internal market and setting the foundation for the euro currency. It also expanded cooperation in areas like foreign policy and justice. The signing represented a major milestone in European history, aiming to strengthen stability, economic growth, and political collaboration among member states.