From 27 to 29 April 1956, with the help of the Socialist Movement for the United States of Europe (SMUSE), the European Congress of Labour — attended by Paul-Henri Spaak, Sicco Mansholt, Guy Mollet and Jean Monnet — holds a meeting in Paris, at the end of which it adopts a resolution in which it expresses its support for the establishment of a Common Market and emphasises its agricultural, social and institutional implications.