John Donvan and Caren Zucker

John Donvan and Caren Zucker began covering autism in 2000 for ABC News, where Donvan is a correspondent and Zucker is a producer. After nearly a decade of television stories on the subject, they cowrote In a Different Key: The Story of Autism. On Twitter, Donvan is @JohnDonvan, and Zucker is @caren_zucker.

In 1938, Hans Asperger, a pediatrician at the University of Vienna, described numerous children he observed as “autistic.”

The Early History of Autism in America

A surprising new historical analysis suggests that a pioneering doctor was examining people with autism before the Civil War

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