Christian von EHRENFELS (1859-1932) is born in Vienna.

Christian von EHRENFELS finalizes his paper 'Über Gestaltqualitäten' (published in 1890). 19.11. Friedrich SANDER (1889-1971) is born in Greiz/Thüringen.

22.7. Wolfgang METZGER (1899-1979) is born in Heidelberg. 12.10. Wera MAHLER (1899-1991) is born.

	Kai von FIEANDT (1909-2000) is born.. Sara FORER is born in Jerusalem. Jerome D. FRANK is born.
	Kurt KOFFKA: 'Experimental-Untersuchungen zur Lehre vom Rhythmus', Zeitschrift für Psychologie, 52, pp 1-109.

	Leon FESTINGER is born
	Kurt KOFFKA: 'Probleme der experimentellen Psychologie II: Über den Einfluß der Erfahrung auf die Wahrnehmung', Die Naturwissenschaften, 7, pp 597-605.

Max WERTHEIMER appointed professor at Frankfurt University Adhémar GELB named codirector of the Frankfurt Psychological Institute with Wertheimer

Wolfgang KÖHLER: 'Gestalt Psychology'. New York: Liveright Wolfgang KÖHLER: 'Ein altes Scheinproblem', Die Naturwissenschaften, 17, pp 395-401 [click here for English version: An Old Pseudo-Problem] Kurt LEWIN: 'Gestalttheorie und Kinderpsychologie', Werdendes Zeitalter, 12, pp 544-50. Kurt LEWIN: 'Die Entwicklung der experimentellen Willenspsychologie und die Psychotherapie', Darmstadt. Adhémar GELB: 'Die 'Farbenkonstanz' der Dinge', Handbuch der normalen und pathologischen Physiologie (A. Bethe ed.), Berlin: Springer, pp 594-677. Karl DUNCKER: 'Über induzierte Bewegung', Psychologische Forschung, 12, pp 180-259. Kurt GOTTSCHALDT: 'Über den Einfluß der Erfahrung auf die Wahrnehmung von Figuren, II', Psychologische Forschung, 12, pp 1-87.

Kurt GRELLING: 'A Logical Theory of Dependence', preprinted for the members of the 5th International Congress for the Unity of Science, Cambridge, Mass. [published in B. Smith, ed., Foundations of Gestalt Theory, München-Wien: Philosophia, 1988] Kurt GRELLING and Paul OPPENHEIM: 'Logical Analysis of 'Gestalt' as 'functional whole'', preprinted for the members of the 5th International Congress for the Unity of Science, Cambridge, Mass. [published in B. Smith, ed., Foundations of Gestalt Theory, München-Wien: Philosophia, 1988; re-published with an overview and introduction by A.S. LUCHINS and E.H. LUCHINS in Gestalt Theory, 21 (1/99)] Karl DUNCKER: 'The Influence of Past Experience upon Perceptual Properties', American Journal of Psychology, 52, pp 255-65. Karl DUNCKER: 'Ethical Relativity? An Enquiry into the Psychology of Ethics', Mind, 48, pp 39-57. Karl DUNCKER and J. KRECHEVSKY: 'On Solution Achievement', Psychological Review, 46, pp 176-85.

Wolfgang METZGER: 'Schöpferische Freiheit', Frankfurt: Waldemar Kramer. Rudolf ARNHEIM: 'The Gestalt Theory of Expression', Psychological Review, 54, pp 66-82.

	Edward C. TOLMAN (1886-1959) dies.
	Wolfgang KÖHLER: 'Gestalt Psychology Today', American Psychologist, 14, pp. 727-34. Abraham S. LUCHINS and Edith H. LUCHINS: 'Rigidity of Behavior', Eugene: University of Orgeon Press.

Wolfgang KÖHLER (posthumously published): 'The Task of Gestalt Psychology', Princeton University Press. Wolfgang METZGER: Lecture 'The Phenomenal-Perceptual Field as a Central Steering Mechanism' at the 2nd Banff Conference of Theoretical Psychology (published 1972). Rudolf ARNHEIM: 'Visual Thinking', University of California Press. Lewis W. BRANDT and Wolfgang METZGER: ''Reality' - What does it mean?', Psychological Reports, 25, 127-35. H. HELSON: 'Why did their precursers fail and the gestalt psychologists succeed?', American Psychologist, 24, 1006-11. Kurt LEWIN: 'Grundzüge der topologischen Psychologie', Bern: Lang. Alfred J. MARROW: 'The Practical Theorist. The Life and Work of Kurt Lewin.' New York: Basic Books.

GESTALT THEORY - An International Multidisciplinary Journal, Official Journal of the Society for Gestalt Theory and its Applications (GTA), is founded. 20.12. Wolfgang METZGER (1899-1979) dies in Bebenhausen bei Tübingen

Gaetano KANIZSA: 'Organization in Vision - Essays on Gestalt Perception', New York: Praeger. Mary HENLE: 'Einer kuschte nicht - Wolfgang Köhlers Kampf gegen die Nazis', Psychologie Heute, März 1979, 80-86. Mary HENLE: 'Phenomenology in Gestalt Psychology', Journal of Phenomenological Psychology, 10, 1-17. Abraham S. LUCHINS and Edith H. LUCHINS: 'Wertheimer's Seminars Revisited: Impressions and Conceptions of Personality', and: 'Wertheimer's Seminars Revisited: Problems of Psychology of Character and Personality'. Both: Albany: Psychology Department Reports, State University of New York. Friedrich HOETH: 'Variablität und Konstanz als phänomenologische Kategorien', Gestalt Theory, 1, 19-25. Hans-Jürgen WALTER: 'Die Klinische Psychologie muß Gestalt annehmen', Psychologie heute, 6, pp 43-53. Kurt GUSS (Hrsg.): 'Gestalttheorie und Sozialarbeit', Darmstadt: Steinkopff.

Richard MEILI (born 28.2.1900 in Schaffhausen/Switzerland) dies. 5th Scientific Convention of the Society for Gestalt Theory and its Applications (GTA) in Dortmund, Germany. Gunnar JOHANSSON receives the Wolfgang-Metzger-Award. International Workshop in Firenze/Italy: Gestalt Psychology - Its Origins, Foundations and Influence. (Lectures were published some years later with this title by POGGI, Stefano.) Leon FESTINGER (1919-1989) dies.

Max WERTHEIMER: 'Eine Geschichte dreier Tage'. First published in German, translated by Marianne Kerres and Hans-Jürgen Walter, Gestalt Theory, 11, pp 68-78. Edwin RAUSCH: 'Gesetz und Zufall als Grundlagen gestalttheoretischer Phänomenologie', Gestalt Theory, 11, pp 3-51, Ernst PLAUM: 'Psychodiagnostik in der Tradition der Lewin-Schule', Gestalt Theory, 11, pp 122-155.

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