Disease first described by Jean-Martin Charcot in the year of 1869, long after being assigned as a Physician of the Hospice of the Salpetriére being assigned to the Division Pariset, Charcot arriving Salpetriére realized that with their knowledge in general medicine, some in nervous diseases, I could try to solve a large problem present at the time, as the nervous diseases covered almost all the beds in your service. At that time the nervous diseases were poorly classified, and many times confused between if, so that the lord Charcot is reported with English and German literature from that time to the end did not do too much, because in his case that he did not know too much about such diseases did not understand some terms, achievement get a little French literature, publications of Duchenne of Boulogne, whom he had met several years before. In fact it becomes one of the few wizards free in the service of Charcot, who learns quite a bit about the diseases that affect the nervous system to such an extent that, years later, Charcot would refer to him as his Master in Neurology. Charcot, true to his habit, he decided to try to fix in some way the deficiency is sustained in its service, after a time, achievement to classify many diseases and collaborated in the research of other to already have extensive knowledge in that he had successfully classify and differentiate between