The observation that a century in the life of any person, entity, or institution is a worthy milestone holds just as true for a scholarly journal. The prevalence and permanence of academic serials, especially in the legal field, has spawned a growing literature of centennial commemorations. And while too much can be made of the anniversary of a law journal, it does serve as a propitious moment to take stock, not so much of the achievement of longevity as of its intellectual content and scholarly character. That is precisely what I intend for this appreciation of a hundred years of writing in the American Journal of International Law (AJIL).