A specific type of nationalism developed in Europe in the first half of the nineteenth century. It differed from New World nationalisms (in the tradition of George Washington, Toussaint Louverture and Simón Bolívar) in a number of respects. It was spearheaded to a large extent by writers, artists, and intellectuals (in the fields of cultural production and knowledge production) rather than by political and popular activists; as such it affected existing states and newly emergent nations alike; and its main impact was through the reconceptualization of the state, its self-image, and its institutions, rather than through popular mobilization. Its main tenet – that the state should reflect, and indeed be defined by, the ethnocultural nationality of its inhabitants – was applied in the Peace Treaties of 1919 as an overriding principle in international law (the peoples’ right to self-determination) and still informs our current assumption that the default state is the “nation-state.”