At the second Hague Congress held from 8 to 10 October 1953, the European Movement presents a report on the concept of a common market and how to proceed with the implementation thereof.

On 25 March 1957, meeting in the Hall of the Horatii and Curiatii in the Capitol in Rome, the representatives of the six Member States of the European Coal and Steel Community (ECSC) sign the Treaties establishing the European Economic Community (EEC) and the European Atomic Energy Community (EAEC or Euratom). From left to right: Paul-Henri Spaak and Baron Jean-Charles Snoy et d’Oppuers (Belgium), Christian Pineau and Maurice Faure (France), Konrad Adenauer and Walter Hallstein (Federal Republic of Germany), Antonio Segni and Gaetano Martino (Italy), Joseph Bech and Lambert Schaus (Luxembourg), Joseph Luns and Johannes Linthorst-Homan (Netherlands).

The Treaty establishing the European Economic Community (EEC) is signed in Rome on 25 March 1957 and enters into force on 1 January 1958.

On 3 July 1957, commenting on the ratification debates in the French National Assembly, Pathé Journal (Paris) outlines the economic and agricultural importance of the Treaty establishing the European Economic Community (EEC), signed by the six Member States of the European Coal and Steel Community (ECSC) in Rome on 25 March 1957.

In its 9 and 10 February 1958 edition, the French daily newspaper Le Monde publishes an extract from a paper written by Jacques Rueff, former Judge at the Court of Justice of the European Communities, on the ‘socio-liberal philosophy’ of the European Economic Community (EEC).

In June 1957, the French Embassy in New York publishes an information document on the Common Market to send to its American correspondents.

In a speech to the Americans during the World Fair held in Seattle in 1962, the President of the Commission of the European Economic Community (EEC), the German Walter Hallstein, describes the EEC and its various institutions.