Le principe de diversité culturelle ouvre bien des perspectives concernant le statut de la littérature et de son objet. Singularité littéraire, connaissance érudite ou pratique engagée, le rôle de la littérature peut se démultiplier au fil du temps et des époques, à travers les auteurs et leurs écritures respectives. Une seule constante conduit l’unicité de l’étude en lettres : la base linguistique qui fonde l’unité du moment littéraire autour d’une langue dite littéraire. / Cultural studies are dedicated to new literatures. How to distinguish practical sciences from cohesion underlying within subtexts when it implies and engages global orientalist meanings … Few linguistical drawings deserted had set upmodern influences. The ideal matrix is not yet engaged : how should literatures have one particular rule to end up with minorities when basics interpretative still misrepresent its singular patterns. Modernized, the linguistics structure have been instrumentalist. Developing relationships and exchanging transferal traditions was increasing the scientist attraction level ; thanks both to contacts in‐between some other european languages the whole modernity that was crossing cultural literaturies made unity (currents are in merged nations).