This article makes a brief historical review of the phrenology, or doctrine of the brain, which was created by Franz Joseph Gall and developed by Johan Caspar Spurzheim and George Combe. Phrenology was spread by various countries like France and England, but it was in the United States, where it reached a high level of diffusion through the foundation of phrenological societies and journal. Moreover, although their postulates were wrong, it is an important antecedent of applied psychology, which meant the passage of metaphysical explanations to the search of the neurophysiological foundations of human behavior. In that sense, phrenology has a well-earned place in the history of psychology and neuroscience in general, which deserves to be recognized with the value that corresponds to it.