Purpose. The author analyzes the role and importance of academic Basque language studies in the development of Basque nationalism. Methods. The author uses the methods of intellectual history and the principles of interdisciplinarity proposed in the studies of nationalism. Results. Various concepts, based on the ideas and values of continuity and the continuous historical, linguistic and geographical presence of the Basques in their region of residence, are analyzed in the article. The author analyzes modernist versions of the history of the Basque language also. It is assumed that a symbiotic situation arose in Basque nationalism between a nationalistic imagination based on an ethnic paradigm and external academic studies, which stimulat...