In a letter to his mentor Josef Breuer, Sigmund Freud made his first documented reference to das unbewusste 'the unconscious.'
Lightner Witmer was born. A legendary pioneer, Witmer was a founding member of the American Psychological Association, established the first 'psychological clinic' in the United States at the University of Pennsylvania and is widely credited with introducing the term 'clinical psychology.'
Robert Baker was born. A pioneer within the field of Anomalistic Psychology, Baker published an extensive body of work which sought to provide psychological explanations for a range of seemingly paranormal phenomena e.g. ghost sightings and alien abductions.
In 1999 an eminent group of scholars assembled by The Committee for Skeptical Inquiry named Baker among the most outstanding skeptics of the 20th Century.
Under the supervision of William James at Harvard University, G. Stanley Hall became the first person to be awarded a doctorate in psychology in the United States.
At a ceremony at the White House, Anne Anastasi was presented with the National Medal of Science by President Ronald Reagan 'For her work in the development of the discipline of differential psychology as a behavioral science, which illuminates the way traits are influenced by heredity and environment and the methods by which traits and human characteristics are measured.'
Ernst Weber was born. Renowned for his pioneering work on touch and human perception, most notably his 'just-noticeable difference' law of sensation between two stimuli; Weber's systematic and scientifically driven methods of inquiry had a profound influence on the development of experimental psychology.
Alfred Kinsey was born. A pioneering researcher within the field of human sexuality, Kinsey's landmark studies were as groundbreaking as they were controversial.
Among Kinsey's most (in)famous publications were 'Sexual Behavior in the Human Male' (1948) and 'Sexual Behavior in the Human Female' (1953) both of which served to highlight the striking contrast between social attitudes towards human sexual behavior and actual practices.