Yes....yes...it is a line from a Rob Zombie song, but it also showcases my current line of thought.
How many of you run your D$D or other fantasy games with ethnic/geographic/cultural bonuses for different groups of humans?
I know that the current Iron Kingdoms 3E rules go into this with their various kingdoms as did some older game stuff done for the Conan world (not sure if the new stuff does). Talislanta also touched on this some too.
I like this because it cuts through the generic human and makes humans a bit more interesting while also helping to establish a sense of place and culture for your world.