Establishing social psychology as a distinct field of study has been the object of heated debate over the first decades of the 20th century. Entrenched in different theoretical traditions, such as philosophy, sociology, psychology, and criminology, the development of the conceptual boundaries of social psychology as an autonomous science was the result of a historic effort. Resulting from a negotiation process between competing stances, some voices relevant to the identity construction of social psychology have been lost over time. Within the framework of a "polycentric" historical perspective valorizing local histories, the present study aims to scrutinize those early voices, which were later marginalized. To this scope, we conducted a nar...