system
A chat on subreddit /r/NoStupidQuestions
human
I grew up in the 60s and 70s, and can now name the children at school who had ADHD and ASD. At the time, we just didn't know.

Also, there were thousands and thousands of hospital places for children with special needs from Victorian times to 1970s. In the census, these children were listed as either idiots or imbeciles. I have a copy of ONE such hospital census that has 50 pages, with 15 children to a page. All listed as idiots.

As an adult living at home, if you had special needs, your job status was listed as idiot or imbecile.

Most died young.
gpt
&gt; In the census, these children were listed as either idiots or imbeciles.

It's worth noting that those were actual diagnoses, with idiot meaning someone with an IQ below idiot and imbecile were actual diagnoses, referring to people with an IQ below 30-ish, and an imbelice having an IQ above that of an idiot but below 50.

(Obviously, IQ is plenty problematic today, and using it like that as a completely blunt instrument is even worse)