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.
Updated May 06, 2016. Mental health professionals group personality disorders into three clusters, including Cluster B personality disorders, based on shared features and symptoms. Many people with one personality disorder also have signs and symptoms of at least one more. Personality Disorders. The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) lists borderline personality disorder (BPD) among the Cluster B personality disorders.