This document provides a history of the development of psychology from ancient times to modern times. It discusses how psychology emerged from philosophy and gained scientific roots in the late 19th century with Wundt establishing the first psychology laboratory in Germany. It outlines some of the early theories and contributors in the pre-scientific era like Socrates, Plato, Aristotle and Descartes and how they viewed the mind and body. It then discusses some of the major figures and schools of thought in the post-scientific era like Wundt, James, Titchener, Freud, Watson, Skinner, Maslow and Rogers and the theories of structuralism, functionalism, behaviorism, psychoanalytic psychology and humanistic psychology they contributed to establishing modern