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.
Like us on Facebook. In the 1970s, a patient known as Sybil was the focus of a popular book exploring a condition then called Multiple Personality Disorder (MPD). While cases of MPD had been described previously, Sybil was special because she reportedly had 16 distinct personalities. The book was a hit, as was the TV movie made a few years later (as if that wasn't enough, a second TV movie was made in 2007).