The Realms (from 2e on) had no "barbarians" as a class anymore, which is why Wulfgar was a fighter, I think.
In Greyhawk and 1e Realms, there were specific regions from which barbarians came from, I think... I forget the particular names, though.
But anyway - barbarians were kind of stupid...

Still, including them for completeness is still a nice idea. (Along with the unfairly-strong cavaliers)