Savant Syndrome was documented by physicians as early as 1789, but was originally termed "idiot savant syndrome." This describes individuals who exhibit below-average intelligence, but possess a remarkable talent in a limited range of knowledge such as math or music.Savant Syndrome is estimated to occur in up to ten percent of autistic individuals.The condition has also been associated with other developmental disorders.Brain damage sustained later in life, due to stroke or head trauma, has also been known to produce the syndrome.Occurrences of Savant Syndrome in subgroups other than autistic individuals,however,are considerably rarer.