Reply #27: They are the same, actually...

[anaxarchos]

If you are referring to the Enlightenment, you are presenting an early view of the issue. Yes, there is clear recognition that some form of social cohesion is appearing and conjecture that it is more general than simple nationality - a variation on "civic virtue". By the middle of the 19th century, though, that naive view is gone, at least to the degree that either term describes something "real". It is a discussion of emerging social bonds before the form of those bonds, the modern state, is fully visible. If you are talking about Aristotle, that is something completely different, again.