This article approaches the last journal directed by Jaime Eyzaguirre, Estudios de Historia de las Instituciones Políticas y Sociales (1966-1967) edited by Facultad de Ciencias Jurídicas y Sociales de la Universidad de Chile. It holds that the review's main issues, the 1891 Civil War, were indirectly aimed to questioning historian Hernán Ramírez Necochea's thesis. This marked a turning point in Eyzaguirre's concerns, since he previously had encouraged his disciples to investigate the Kingdom of Chile's history. This historiographical dispute, which was part of a struggle for social imaginaries, sought to neutralize the progressive image of President José Manuel Balmaceda that left-wing historiography had created.