This document discusses the rise of classical organizational theory from 1910-1935 and the human relations movement from 1935-1950. The classical theorists like Taylor, Fayol, Gulick, and Weber focused on structure and efficiency. Taylor pioneered time and motion studies while Fayol identified management functions. The Hawthorne Studies from 1924-1932 shifted the focus to social and psychological factors, finding that relationships and participation increased satisfaction and performance more than formal structure. This led to the human relations movement and theorists like Mayo who emphasized the individual.