The Unseen History of International Law locates and describes almost one thousand surviving copies of the first nine editions of Hugo Grotius' De iure belli ac pacis (IBP) published between 1625 and 1650. Meticulously reconstructing the publishing history of these first nine editions and cataloguing copies across hundreds of collections,The Unseen History provides fundamental data for reconstructing the impact of IBP across time and space. It also examines annota...