It's also very important to remember that it isn't even just that the maps labeled parts of Barca as part of their "lands" or whatever, that is part of it, sure. But it isn't as if the maps made Terran declare war or something. I stated they were SOME of the beginnings of distaste/dislike for Aurvandil in Terran.
Why? Because although their arrogance is famed throughout BM now, they actually aren't the only arrogant ones. Terran sees itself as the dominate political, military, and cultural force in the Maroccidens. Terran built the 'Moot, it forged the political identity of the Maroccidental Republics, it founded Barca, Terran is the wellspring of civilization in the Maroccidens. When Aurvandil comes with such a foreign culture, foreign naming conventions, odd codes of honor/battle, an alien political system, weird views on religion, etc. it made Terran uneasy. The renaming of prominent areas of the Maroccidens, Madina Isle, the Candiels Peninsula, etc. is the perfect example of the culmination of all these things. Terran was miffed, and as Aurvandil became stronger and stronger, it felt further and further threatened by these foreign people with their funny names, strange beliefs, and weird customs.
Yeah, from and OOC/Modern perspective it's silliness. But from a BM perspective I think it is one of the more beautifully orchestrated medieval reactions I've been able to be a part of. The Aurvandil v. Terran/Moot conflict is not the typical BM conflict. It isn't just about land, or boredom, or just because thats the thing to do. It wasn't even on the flat level of "hey those guys aren't X religion! get 'em!" Rather, it was a huge culmination of animosity toward a foreign culture/peoples plus the growing feeling of being threatened by these foreigners as they grew in number and military power that was easily sparked into conflict when the inevitable border dispute or diplomatic issue arose.
It's awesome. It's so medieval. It's so Dwilight.
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As far as the availability of the maps goes, for as long I've been her its always been a "if its on the wiki consider it public knowledge" policy. Also, though Kale initially saw the maps from Hireshmont, I believe, I do know they circulated through the Dwilight University once or twice as well.