Best Answer: St. Augustine (Florida) is the oldest continually occupied European settlement in the continental United States, only San Juan, Puerto Rico predates the city as the oldest settlement within the territory of the United States.
Finally in 1980 the American Psychiatric Association officially recognized multiple personality disorder as a genuine emotional illness. Today, MPD is a relatively popular diagnosis with 20,000 cases recorded between 1980 and 1990. Researchers currently believe that from 0.01-10% of the general population has this mental illness.
Multiple personality disorder is now more usually termed dissociated identity disorder. It is one of the more misunderstood types of mental illness, frequently capturing the interest of writers and filmmakers, who tend to portray it in its most exaggerated form. What is most important to understand is the multiple personality disorder is not schizophrenia. The two are often confused. However, in very rare cases, a personality, or alter, as it is sometimes termed, suffers from schizophrenia.