Autistic disorder in nineteenth-century London: three case reports.

Waltz et al. (2004) dug into 1800s London hospital notes. They pulled three children who acted like kids we now call autistic.

The team lined up old doctor words with today’s autism checklists. No new tests, just a careful read of dusty files.

All three children fit modern autism criteria even though the word “autism” did not yet exist.

Their stories show the profile we treat today was already present more than a century ago.

Gillberg (1993), Fombonne (2003), and Szatmari (1992) all say autism is a long-known behavioral syndrome. The London cases give them fresh old proof.

Yelton (1979) tracked one of Kanner’s first patients into adult life. Together with Mitzi’s kids, we see the same pattern from teen years to grown-up.

Delamater et al. (1986) warned that early autism papers lacked clear details. Mitzi answered by giving rich, clear notes on each 19th-century child.

You can tell parents and teachers that autism is not new. These 1800s stories prove the profile stayed steady across time and place. Use the fact to ease fears that modern life “causes” autism and to show why evidence-based ABA remains the top tool.