Did Romans recruit Sicilians, Neapolitans, Sardinians and Corsicans into their Legions? Or were they mainly composed of central Italians?

by woffo2

I understand this question is rather complex, but did the Romans consider the Greeks of Magna Graecia to be of the same stock as themselves? Did they serve in the legions no different than other Italians?

Thanks so much.

HatMaster12

If I may ask for clarification, is there a particular period of Roman history you are interested in?