Originally Posted by Kurulham
One also runs across the issue of areas of cultural intersection: do we call it Tarentum or Ταρας, Επιδαμνος or Δυρραχιον or Dyrrhachium, Hangmatana or Εκβατανα? In the end it'll be very difficult to avoid bias towards one culture or another.
For my personal use, I've chosen a very direct answer to the problem: ignore it completely and embrace Hellenocentrism. I realize this isn't to everyone's taste, though, so I'm preparing two versions of the installer: one to convert only Greek to Greek, and one to convert EVERYTHING to its Greek name (or best approximation, if I can't find a historical Greek name for something).
I should also note that I will not be including accents; while Unicode support for them is absolutely fine, the RTW engine doesn't display the accented character. Go figure.