"There seem to be at least seven characteristics common to gifted children and to children with AS. These commonalities have not been verified in any controlled studies, but are pulled from the shared literature and clinical experience. For instance, verbal fluency or precocity is common to both, and both may have excellent memories (Clark, 1992; Frith, 1991; Levy, 1988; Silverman, 1993). Both may evidence a fascination with letters or numbers and enjoy memorizing factual information at an early age. Both may demonstrate an absorbing interest in a specialized topic and may acquire vast amounts of factual information about it (Clark; Gallagher, 1985; Klin & Volkmar, 1995). They may annoy peers with their limitless talk about their interests. They may ask endless questions or give such lengthy and elaborately specific responses to questions that it seems they are unable to stop. One gifted AS child known to the author, when asked who Christopher Columbus was, responded with a dozen sentences detailing his genealogy."