Jan 1, 2026
| Aspect | Details |
|---|---|
| Founding Period | 1945 post-war drive for peace and cooperation |
| First Institution | ECSC (1951): France, West Germany, Belgium, Luxembourg, Netherlands, Italy |
| Common Market | EEC (1958): abolished customs duties among members |
| Expansion | 1958–1986: enlarged to 12 members (adds UK, Ireland, Denmark, Greece, Spain, Portugal) |
| Single Market Proposal | 1986: Commission proposed free movement of goods, people, capital, services |
| Single Market Opening | 1993: large internal market opened |
| Political Transformation | 1993: EEC became European Union; Maastricht Treaty on EMU |
| Single Currency | 2002: Euro introduced in participating EU countries |