Abstract
Subject of the Moment, Reloaded. The catalogue of Ludwig Darmstaedter's document collection, which contains sources as well as a categorization conspicuous of a history of knowledge avant la lettre, invites for a revisiting of the history of our discipline, thereby asking for its current role in academia and beyond. We argue that as historians of science or as historians of knowledge, our discipline disposes of the tools and topics necessary to respond to urgent epistemic and political problems.