heh.
I just got Final Fantasy X-2 for Christmas yesterday, and in that game a lot of the history of Spira (namely the war between Zanarkand and Bevelle and the birth of Sin) is explained...which is good because then the story for the RP will be more accurate to what really happened. Of course, I will have to change a few things just to make everything work...but otherwise I'll keep it as true as possible.