International audienceFrom fighting in defence of descendants to fighting to contemporary people involved dramatical events in the twentieth century, ant then the people tortured by modern totalitarism governments, the history is became a subject of law. This evolution has been done by large interpretation of conception of fault and by creation of many new incriminations to suppress attacks on memory's duty after the Second World War's atrocities. In one hand, professionnal historians have been exempt from responsability during a long time, except in case of insincerity or lack of scientific method ; in the other hand, a lot of non-professionnal people has been prosecuted. This discrimination now seems to be changing, the social requirement...