This document provides an overview of the evolution of management thought from pre-scientific era to modern era. It discusses early contributors like Adam Smith and Charles Babbage. It then covers the classical era with the development of scientific management by Taylor, administrative management by Fayol, and bureaucratic management by Weber. The neo-classical era saw the human relations approach by Mayo and behavioural science approach. Modern management incorporated quantitative management, systems approach, and contingency approach situational decision making.