Abstract
There is a chapter in the history of ideas which, at least since the 1960s, appeared to have been definitively resolved. French Marxism of the 1930s has thus been reduced, whether by its supporters and opponents or by historians, to the status of a mere avatar of Stalinist diamat, albeit with certain variations which can be traced back to the national heritage of materialism and rationalism. The paper presents the main results of a research project whose purpose is to reconstruct the developments which have led to the formation of such an image. The aim is to recover the possibility of apprehending afresh the various competing trends which, at the time, were engaged in a discursive struggle, the object of which was the definition of dialectical materialism. Hegel’s name, invoked in the context of epistemological discourses and to oppose the dominant academic tradition, thus emerges as a major philosophical reference for those currents which, at the termination of this ideological conflict, ended up on the defeated side.