Psamtik I conducts the first psychological experiment in Egypt
625 – 546 B.C.
Time period of Thales, who invented the idea of Nous. He was the first Greek philosopher, scientist, and mathematician, is credited with writing a book on navigation, and is rumored to have been Anaximander’s teacher.
Circa 600 B.C.
”Discovery of mind” in various parts of the world
The Greek philosopher Anaximander, a biologist, geographer, and astronomer, organizes a map of the world
Pythagoras, the first pure mathematician, completes his famous theorem
535 - ~450 B.C.
The time Period of Alcmaeon, who proposed four 'powers' of the body: hot, cold, wet, and dry. Also asked the question, "Where does the nous live?"
500 - 428 B.C.
The Time Period of the Greek philosopher Anaxagoras, philosopher, mathematician and teacher of Pericles
490 - 420 B.C.
The Time Period of the Greek philosopher Protagoras, who believed that truth and knowledge are created by the mind.
469 - 399 B.C.
The Time Period of the Greek philosopher Socrates, teacher of Plato.
460 - 377 B.C.
The Time Period of Hippocrates, father of medicine, the Hippocratic oath, and the 4 "humors" (blood, phlegm, black bile and yellow bile)
460 - 370 B.C.
The Time Period of the Greek philosopher Democritus, who came up with the concept of 'atoms.' Atoms struck the body and were translated into perception in the mind.
427 - 348 B.C.
The Time Period of the Greek philosopher Plato, teacher of Aristotle
384 - 322 B.C.
Era of the great philosopher
Plato becomes the founder of the Academia
Aristotle creates The Anima
341 - 270 B.C.
Time period of the philosopher Epicurus, who based his physics on the theory of a materialistic universe unregulated by divine providence and composed of indestructible atoms moving in a void. Founder of Epicureanism: "Pleasure is the beginning and the end of the blessed life"
336 - 264 B.C.
Time period of the philosopher Zeno, cofounder of stoicism (a philosophy that stated that peace could only be found through controlling ones emotions)
Aristotle becomes the founder of the Lyceum
120 - 201
Time period of Galen, whose work influenced the medical community for 1500 years. Galen worked on a theory of personalities, and was the first to classify emotions.
Augustine completes Confessions
Augustine completes City of God
World's first mental hospital opens in London. It was called Bethlehem Royal Hospital, but soon became commonly known as 'Bedlam.'
Publishes his famous Summa Theologica
The Proficience and Advancement of Learning is published
1632 - 1704
Time period of John Locke, a major leader of the British empiricist tradition, and one of the most influential philosophers of post-renaissance Europe.
French philosopher Renê Descartes publishes Discourse on Method. Descartes is famous for the quote "I think, therefore I am"
Writes Passions of the Soul which postulates the total separation of body and soul
Publishes the Leviathan
An Essay Concerning Human Understanding is published by English philosopher John Locke
An Essay Toward a New Theory of Vision is published
A treatise of empirical psychology is published by Christian von Wolff
A treatise of rational psychology is published by Christian von Wolff
Publishes the famous An Inquiry Concerning Human Understanding
Immanuel Kant, one of the most influential philosophers of the day, publishes Critique of Pure Reason
Johannes Müller publishes Handbüch des Physiologie des Menschen
Elements of Physiology is published by Johannes Müller
Works with Hermannn von Helmholtz as his assistant
Publishes The origin of the species
Gustav Theodor Fechner publishes Elements of Psychophysics
Hereditary Genius is published
The descent of man is published by Charles Darwin
Charles Darwin publishes The Expression of the Emotions in the Man and in the Animals
Wundt left Heidelberg for a better position at the University of Zurich
Teaches the course The relationships among the Physiology and the Psychology
Wundt leaves Zurich and heads toward University of Leipzig
Francis Galton uses method of twin comparisons
Wilhelm Wundt establishes first psychological laboratory at the University of Leipzig in Germany
Francis Galton makes systematic use of questionaries
Wundt begins to publishes journal Philosophische Studien
Francis Galton publishes Inquiries into Human Faculty and Its Development
The first laboratory of psychology in America is established at Johns Hopkins University by G. Stanley Hall
Ebbinghaus publishes Memory: A contribution to experimental psychology (Über das Gedächtnis)
Christine Ladd-Franklin receives an honorary LLD from Vassar, the only Vassar graduate to receive this honor
J. McKeen Cattell
Becomes America's first professor of psychology at the University of Pennsylvania
William James publishes Principles of Psychology
J. M. Cattel publishes Mental Tests and measurements.
The American Psychological Association is founded, having only 42 members
Ladd-Franklin develops the Ladd-Franklin theory, which stated that evolution led to an increased differentiation between color and black and white vision, and assumed a photochemical model of the visual system. This theory enjoyed widespread acceptance for many years.
Edward B. Titchener, student of Wundt, comes to the US.
Margaret Floy Washburn
Washburn completes her training under Titchener
Mary Whiton Calkins
Calkins publishes a paper in the Psychological Review extending Ebbinghaus' memory research.
Publishes The Interpretation of Dreams
Carl G. Jung
Carl G. Jung is appointed Bleuler's assistant
Publishes New Methods for the Diagnosis of the Intellectual Level of Subnormals.
Calkins elected as the first woman president of the American Psychological Association1906
Publishes his findings regarding classical conditioning
Carl G. Jung publishes The Psychology of Dementia Praecox
Alfred Adler publishes his main work: A Study of Organic Inferiority and Its Psychical Compensation
Koffka receives his doctorate under Stumpf at the University of Berlin
Alfred Binet and Theodor Simon develop tests for measurement children's intelligence
Washburn publishes, "The Animal Mind"
Kohler receieves his doctorate under Stumpf at the University of Berlin
Calkins publishes an introductory psychology textbook, "A First Book in Psychology"
Wertheimer discoveres the illusionary movement of light, and calls it the "Phi Phenomenon"
Wertheimer, Koffka and Kohler meet
E. L. Thorndike
Publishes his famous Animal Intelligence
Wertheimer publishes, "Experimental Studies of the Perception of Movement." These findings marked the beginning of Gestalt Psychology
Publishes Psychology as the Behaviorist Views It Carl G. Jung begins to depart from freudian views and develops his own theories
Kohler goes to the Canary Islands to study chimpanzees. He is stranded there until the end of World War I.
Sigmund Freud publishes the metapsychological work on repression
Washburn publishes, "Movement and Mental Imagery"
Kohler writes "The Mentality of Apes"
Calkins elected as the first woman president of the American Philosophical Association
Kohler returns to Germany
Watson is forced to leave academia. He enters the advertising business, where he applies psychological methods and principles to advertising.
Washburn elected as the second woman president of the American Psychological Association
Koffka publishes "The Growth of the Mind," which deals with child development.
Koffka introduces Gestal Psychology to America with Perception: An Introduction to the Gestalt Theory
Kohler succeeds Stumpf at the University of Berlin
Sigmund Freud publishes The Ego and the Id
E. K. Strong publishes The Psychology of Selling and Advertising
Ladd-Franklin publishes "The Nature of Color Sensation"
B. F. Skinner
Publishes his first experimental paper, On The Conditions of Eliciation of certain Eating Reflexes
Washurn becomes the first woman psychologist and second woman scientist elected to the National Academy of Sciences
Koffka publishes "Principles of Gestalt Psychology"
Kohler flees Germany, joins the faculty of Swarthmore College, and becomes the spokesman for Gestalt Psychology
B. F. Skinner uses the term operant for the first time and applies the term respondent to the pavlovian type of reflex
B. F.Skinner publishes The Behavior of the Organisms
Develops therapy centered on the patient
Abraham Maslow developes a hierarquical theory of human personality in the book Motivation and Personality
B. F. Skinner publishes Verbal behavior
Watson receives a citation from the American Psychological Association for his contributions to psychology
Kohler elected as president of the American Psychological Association
Robert Watson publishes article History of Psychology: a Neglected Area
Carl Rogers publishes On becoming a person
Abraham Maslow publishes Toward a Psychology of Being
B. F. Skinner publishes Beyond Freedom and Dignity
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