Features of the skeleton of a child who died 1,500 years ago may be evidence of the oldest case of Down syndrome recorded, according to researchers. The remains, found in a 5th- to 6th-century necropolis in Chalon-sur-Saone in France, include a short, broad skull, thin cranial bones and a flattened skull base, all common features of people with Down syndrome, according to University of Bordeaux's Maite Rivollat, who studied the skeleton.

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