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May 1, 2025
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Psychology Timeline
Category:
History
Updated:
8 months ago
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Created by
Atreyu Heller
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Events
Phineas Gage
Paul Broca discovered an area in the left frontal lobe that is key to language development
Wilhelm Wundt founded the first formal laboratory of psychology
The first laboratory of psychology in the U.S. is set-up at John Hopkins University
William James publishes, Principles of Psychology, the first psychology textbook
Margaret Floy Washburn becomes the first woman to earn a Ph.D in psychology
Edward Thorndike published his first article on animal intelligence, eventually leading to the theory of Operant Conditioning
Sigmund Freud publishes, The Interpretation of Dreams
William Stern developed a formula for the Intelligence Quotient (IQ)
John B. Watson published, Psychology as the Behaviorist Views It
Jean Piaget published The Language and Thought of the Child
B.F. Skinner published The Behavior of Organisms
Erik Erikson published, Childhood and Society
The Code of Ethics for Psychologists is created by the American Psychological Association
Abraham Maslow founded the Humanistic Perspective of Psychology
Carl Rogers published On Becoming a Person
Howard Gardner introduced his theory on Multiple Intelligence
Periods
Karen Horney proposed the social-cultural perspective
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