The present article constitutes a chronicle of the Laboratorio de Psicologia Experimental: Prof. Ronald Betancourt Mainhard of the Psychology Department of the Universidad de Chile, in the 1999-2016 period. Using the available literature, we present the antecedents of the foundation of the laboratory, giving national and international context to its establishment. For the chronicle itself we relied mainly on personal memories of the authors, who have been members of the laboratory for varying periods of time, and occasionally on the brief literature on the subject. The history of the laboratory can be divided into three stages: a foundational stage, a "seeding" stage, and finally, a stage of consolidation in research. Future projections for the Laboratory are discussed.