I would agree with Akka more than Lexicus on this. If you think of the Roman empire, it surely was multicultural and at times pretty open to cultural influences, especially from the more developed east. But on the other hand, what kept the empire together, aside from the sandals of the legions, was an idea of roman citizenship. Now, you could become a roman, but if romanness was not the goal to strive for, I don't think the empire would have lasted as long as it did. In fact it was only after the center of the Roman empire moved outside of Rome itself, thereby diminishing the importance of romanness, that the empire in the end collapsed and local identities became more important. I mean if the Roman empire could have been kept together without the idea of romanness, why did the romans establish colonies of roman citizens on conquered kans? (Ok, to house the olen mercenary legionaires, but surely that was not the only reason)