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.
Dissociative Identity Disorder. Multiple personality disorder is the more common name for what is known by doctors and psychologists as dissociative identity disorder, or DID. This name change was made to help convey that people with this disorder do not have multiple people in their bodies.