Originally posted by Oda Nobunaga
Don't agree with you about longbow to england - I mean, yes, historically they were the one who built them, but Civ is not about duplicating history - it's about alternate history. If historically the aztecs had wanted to train a force of longbowmen, why couldn't they?
UUs which represent the fact that at a time in history, certain units of a certain type deployed by that nation enjoyed better training or equipment than their rival, or formed elite forces for that nation, I have no problem with (Samurai - though they should either be made a horse-based unit, or be altered to replace medieval infantry), Musketeers, Immortal, Legion, etc)
On the other hand, units which represent an entirely different kind of weapon being available only to one nation to replace another unit, I mind (War elephant ; the proposed longbowman idea, etc ; the war elephant especially as they were used by many others in history (although NO, Hannibal didn't get much mileage out of his) very much.