The Treaty of Rome was signed in Rome in 1957.
The treaties were signed on 25 March 1957 at the Capitoline Hill. The European Economic Community Treaty established a common market among six founding states: Belgium, France, Italy, Luxembourg, the Netherlands and West Germany. A second treaty created the European Atomic Energy Community.
The agreements entered into force on 1 January 1958. They became a major foundation of European integration and are regarded as an important step toward the present European Union.
Rome’s role in the treaty is distinct from Brussels, Luxembourg City and Strasbourg, which later became important centres of European institutions. The phrase “Treaty of Rome” can also refer more generally to the pair of treaties signed that day, rather than only the EEC treaty.