This article analyses the teleological argument justifying historical progress in Kant's Guarantee of Perpetual Peace. It starts by examining the controversies produced by Kant's claim that the teleology of nature supports the idea of a providential development of humanity towards moral progress and the possibility of achieving a cosmopolitan political constitution. It further illustrates how Kant's teleological argument in Perpetual Peace needs to be assessed with reference to two systematically relevant issues: first, the problem of coordination linked to the necessity (...) of realizing the ‘highest good’ as a historical end of practical reason, and secondly the problem of continuity posed by the temporal limitation of all individual efforts to cultivate moral dispositions. To illustrate the implications of both issues for the teleological argument in Perpetual Peace, the article draws attention to some important developments in Kant's analysis of teleology following the Critique of Judgment. (shrink)