Josef Breuer was born. An eminent physician and pioneer in the field of neurophysiology, Breuer is best known within psychology for being Sigmund Freud's mentor and for playing an integral role in the early development of psychoanalysis. Breuer introduced the psychoanalytic concepts of free association and emotional catharsis and it was in a letter to Breuer that Sigmund Freud made his first published reference to das unbewusste 'the unconscious.'

Josef Breuer is also renowned for treating the first patient of psychoanalysis, Bertha Pappenheim. More commonly known as "Anna O," Sigmund Freud was greatly influenced by the case and despite never treating her himself, regularly referred to 'Anna O's' talking cure as a 'great therapeutic success.'

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Psychoanalysis