Taking the cue from the translation of Land und Herrschaft by Otto Brunner, the essay explores how his work challenges the historian as well as the translator.Using ideologized concepts as Staat, Land, Herrschaft, Friede, Recht, here Brunner gives to these expressions a specific value from the temporal point of view.After the transformation of the social and political concepts between the XVIII and XIX centuries, which made many concepts so temporally determined that they are of little use, Brunner redefines them radically and makes intelligible a language which read more is otherwise obscure.