The creation of a the Biennale of young artists in Paris takes place for the first time at the Museum of Decorative Arts at the Pavillon de Marsan (in the Louvre) in 1957. However, this event organised in favour of the so called New "Ecole de Paris" will be erased from the history of Biennales organized and narrated by Raymond Cogniat at the beginning of the French fifth Republic. This first experiment however turns out however many lessons about relationships between the government and the artists and therefore, deserves to be discussed. Its organization, which precludes any real selection and its relative failure, will give valuable indications to the future organizers of similar events, such as Raymond Cogniat and François Mathey, the Museum of Decorative Arts curator, a defender of contemporary art.