Born in England, Jackson first became interested in neurology when he became a staff member of the National Hospital Queen’s Square. There began his first stimulation in the study of seizures. He gained importance, not on his description of a certain seizure pattern “Jacksonian Epilepsy”, but on his formulation of concepts even principles that explain paroxysmal seizures of all types. He also postulated truly evolutionary levels of the sensori-motor mechanisms-the lowest spinal cord, medulla and pons, the middle, the rolandic region, and the highest level, the prefrontal lobes. As a neurologist, he published some 300 papers mostly in obscure journals.