Yeah, that's basically what happened, the history someone else described.
Plus, the actual meaning of "Kanner's autism" has shifted a lot, as my blog entry What does "Kanner's" actually mean, historically? gets into. I bet a lot of people just exactly like Kanner's patients, if they went in for diagnosis today, would get called Asperger's or PDD-NOS, ironically enough.
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"In my world it's a place of patterns and feel. In my world it's a haven for what is real. It's my world, nobody can steal it, but people like me, we live in the shadows." -Donna Williams