Given that the term autism didn’t exist before 1911 it probably wasn’t being diagnosed a whole lot before then. But I would guess it went up as understanding and awareness of it grew, but there were definitely descriptions of people who met the criteria for it long before then.
Given that the term autism didn’t exist before 1911 it probably wasn’t being diagnosed a whole lot before then. But I would guess it went up as understanding and awareness of it grew, but there were definitely descriptions of people who met the criteria for it long before then.
https://en.m.wikipedia.org/wiki/History_of_autism