This document discusses the history and evolution of organizational behavior as a field of study. It begins by defining organizational behavior as "the study of human behavior in organizational contexts with a focus on individual and group processes and actions." It then outlines some of the key historical developments in the field, including the transition from artisan work before the industrial revolution, to scientific management approaches in the 19th century aimed at controlling labor. The Hawthorne studies in the 1920s-30s highlighted the importance of social and human factors in organizations. This led to the emergence of organizational behavior as a distinct discipline focused on human behavior within organizations in the 1960s. The document also discusses systems rationalist and symbolic-interpretative perspectives within the field.