The Dark Bargain
Kaelton was the original Human Kingdom from the Age of the Giants. The word Kaelton is the name of the Kingdom, but Kaeltian is the word used when referring to the kingdom (As in America, American). Over time, the magic they used became more and more corrupt, and the taint started spreading to some of the land, affecting the Southern Regions first. One Warrior realized what was happening, and wrested control of an entire province from the Kaeltian Overlords, initiating a rebellion that overthrew the entire Kingdom. This war caused a great amount of taint to be released, but the Priestesses of Iomedae were able to prevent most of it from settling. There are still Kaeltian wastes that are tainted and evil.