On December 17, 2021, The Interamerican Society of Psychology (ISP) celebrated its 70th anniversary. This article briefly describes ISP's history, discussing its organizational structure, and the contributions of the working group history of psychology, to honor this important event. The history of psychology division within ISP remains committed to facilitating encounters of Ibero American psychologists who wish to further examine the history of psychology. Lastly, we analyzed the growth and the contemporary challenges in the field of history of psychology in Latin America.