I promise I didn't rip off someone else's idea on purpose. As far as I know, we came up with the idea independently, and happened to also come up with the same name.
I discovered over the weekend, in reading the Pathfinder Playtest materials, that the world of Golarion (Paizo's published campaign world) has a region with the exact same name as a region I have in my own world, and which figures significantly in my work in progress.
Arrrghhh... I really don't want to rename my region just because someone else used it in their own published materials. So, call me a ripoff artist or copycat if you want, but I'm going to keep going with the book as planned, and keep the region and name that I'm using.