What does the spectacular return of the event ? Behind the apparent return of the traditional history, of the so-called evenementialist history. What comes back is not the same, but an event reflected, defatalized and conceived like social construction, like traces meaning at the same time individual ands collective memory deferred action. Michel de Certeau “The event is what it becomes”. Object of an interrogation always to be adopted by the social sciences, the event remains at the same time Sphinx, like irresolute enigma, and Phenix, as it is never foreclosed.