The mutual analysis between Dr. Sándor Ferenczi and Elizabeth Severn, which took place from 1925 to 1933, is considered one of the most controversial episodes in psychoanalytic history. The unconventional relationship between Ferenczi and Severn, an American psycho-therapist and author who lacked academic credentials, proved both taxing and enlightening for Ferenczi. Sigmund Freud and the orthodox analytic community condemned the analysis, calling Severn an "evil genius." In the light of new evidence found in Severn's papers, the Ferenczi/Severn analysis is being re-examined to indicate the historical significance Severn played in psychoanalytic theory and practice for the study and treatment of trauma. Speakers included James Hutson, Arnold Rachman, Lewis Aron and Joseph Lichtenberg.