-
Charles Darwin published the On the Origin of Species, detailing his view of evolution and expanding on the theory of 'Survival of the fittest.'
-
-
The first laboratory of psychology in America is established at Johns Hopkins University.
-
Sigmund Freud began performing therapy in Vienna, marking the beginning of personality theory.
-
Sir Francis Galton developed the technique known as the correlation to better understand the interrelationships in his intelligence studies.
-
The first psychological clinic was developed at the University of Pennsylvania marking the birth of clinical psychology.
-
John E. Watson published 'Psychology as a Behaviorist Views It' marking the beginnings of Behavioral Psychology.
-
Electroshock therapy was first used on a human patient.
-
The state of Connecticut passed licensure legislation for psychologists, becoming the first state to recognize psychology as a protected practice oriented profession.
-
Erik Erikson published 'Childhood and Society,' where he expands Freud's Theory to include social aspects of personality development across the lifespan.
-
Chlorpromazine (Thorazine) first used in the treatment of schizophrenia.
-
The Diagnostic and Statistical Manual of Mental Disorders (DSM) was published by The American Psychiatric Association marking the beginning of modern mental illness classification.
-
Abraham Maslow helped to found Humanistic Psychology and later developed his famous Hierarchy of Needs.
-
Leon Festinger proposed his theory of 'Cognitive Dissonance' and later became an influence figure in Social Psychology.
-
Carl Rogers published 'On Becoming a Person,' marking a powerful change in how treatment for mental health issues is conducted.
-
Howard Gardner (professor at Harvard University) introduced his theory of multiple intelligence, arguing that intelligence is something to be used to improve lives not to measure and quantify human beings.