The DeWitt Wallace Institute for the History of Psychiatry supports scholarly projects that investigate historical topics in psychiatry. Researchers tie these studies to the present-day theory and practice of psychiatry to better understand the mentally ill in America. Its activities include sponsoring the Richardson History of Psychiatry Research Seminar and administering the Oskar Diethelm Library, which includes a wide array of titles on psychiatry and related topics, such as psychoanalysis and spiritualism. The institute also offers scholarly resources including fact sheets on health topics, including the history of the opioid epidemic in the United States.