We investigated the history of Resusci Anne, the well-known cardiopulmonary resuscitation (CPR) simulation trainer. The creation of Resusci Anne began with Peter J. Safar, an accomplished anesthesiologist who experimented with resuscitation of respiration and cardiac function. He collaborated with Asmund S. Laerdal, whose early experimentation with soft plastics allowed him to create a human simulator that could be used to teach the skills of resuscitation to both medical care practitioners and individuals of all walks of life. A special face was chosen for the simulation mannequin, one based on a mysterious death mask of a beautiful woman from the late 19th century. The success of Resusci Anne led to the widespread acceptance of CPR and simulation use in medical training.