Kurt Lewin — American Psychologist born on September 09, 1890, died on February 12, 1947
Kurt Zadek Lewin was a German-American psychologist, known as one of the modern pioneers of social, organizational, and applied psychology in the United States. Kurt Lewin, exiled from the land of his birth, made a new life for himself. In this new life, Lewin defined himself and his contributions within three lenses of analysis; applied research, action research, and group communication were his major offerings to the field of communication... (wikipedia)