[falcolas]

> These conditions were almost non-existent until recent history

That's a myth, actually. ADHD has been studied and described for well over 100 years under different names: "Clumsy Child Syndrome", "Minor Brain Damage", and "Moral Failing".

Being present in medical literature for over a century actually makes it one of the better known mental medical conditions.

[pseudalopex]

It was called things close to attention deficit well over 200 years ago even.