The science and practice of psychology has evolved around the world on different trajectories and timelines, yet with a convergence on the recognition of the need for a human science that can confront the challenges facing the world today. Few would argue that the standard narrative of the history of psychology has emphasized European and American traditions over others, but in todays global culture, there is a greater need in psychology for international understanding. This volume describes the historical development of psychology in countries throughout the world. Contributors provide narratives that examine the political and socioeconomic forces that have shaped their nations psychologies. Each unique story adds another element to our understanding of the history of psychology. The chapters in this volume remind us that there are unique contexts and circumstances that influence the ways in which the science and practice of psychology are assimilated into our daily lives. Making these contexts and circumstances explicit through historical research and writing provides some promise of greater international insight, as well as a better understanding of the human condition.