Timeline of Psychology - Nineteenth Century - 1890s

1890s

• 1890 - Christian von Ehrenfels published On the Qualities of Form, founding Gestalt Psychology.
• 1890 – William James published Principles of Psychology.
• 1890 – James Hayden Tufts founded the United States' 9th experimental psychology laboratory at the University of Michigan.
• 1890 – G. T. W. Patrick founded the United States' 10th experimental psychology laboratory at the University of Iowa.
• 1890 – James McKeen Cattell left Pennsylvania for Columbia University where he founded the United States' 11th experimental psychology laboratory.
• 1890 – James Mark Baldwin founded the first permanent experimental psychology laboratory in the British Empire at the University of Toronto.
• 1891 – Frank Angell founded the United States' 12th experimental psychology laboratory at the Cornell University.
• 1891 - Edvard Westermarck described the Westermarck Effect, where people raised early in life in close domestic proximity later become desensitized to close sexual attraction, raising theories about the incest taboo.
• 1892 – G. Stanley Hall et al. founded the American Psychological Association (APA).
• 1892 – Edward Bradford Titchener took a professorship at Cornell University, replacing Frank Angell who left for Stanford University.
• 1892 – Edward Wheeler Scripture founded the experimental psychology laboratory at Yale University, the 19th in United States.
• 1892–1893 – Charles A. Strong opened the experimental psychology laboratory at the University of Chicago, the 20th in the United States, at which James Rowland Angell conducted the first experiments of functionalism in 1896.
• 1894 – James McKeen Cattell and James Mark Baldwin founded the Psychological Review to compete with Hall's American Journal of Psychology.
• 1895 - Gustave Le Bon published The Crowd: A Study of the Popular Mind.
• 1896 - John Dewey published the paper The Reflex Arc Concept in Psychology, founding Social Behaviorism.
• 1896 – The first psychological clinic was opened at the University of Pennsylvania by Lightner Witmer; although often celebrated as marking the birth of clinical psychology, it was focused primarily on educational matters.
• 1896 – Edward B. Titchener, student of Wilhelm Wundt and originator of the terms "structuralism" and "functionalism" published An Outline of Psychology.
• 1897 - Havelock Ellis published Sexual Inversion.
• 1898 – Boris Sidis published The Psychology of Suggestion: A Research into the Subconscious Nature of Man and Society.
• 1899 – On November 4 Sigmund Freud published The Interpretation of Dreams (Die Traumdeutung), marking the beginning of psychoanalysis, which attempts to deal with the Oedipal complex.