This essay explores the ways in which the idiosyncratic onto-theogony of Friedrich Schelling's 1815 version of The Ages of the World anticipates Gilles Deleuze’s equally idiosyncratic interpretation of Friedrich Nietzsche’s doctrine of eternal recurrence. As I argue, Schelling’s work presents a sophisticated theory of being and time, a complex account of the genesis of actuality from within a differentiated transcendental field, and a reworking of the doctrine of Ideas, all of which together project a conception of reality as eternal recurrence strikingly similar to the one Deleuze draws out of Nietzsche’s scant and elliptical writings on the subject.