Song of the Ages
Legend states that thousands of years ago a noble family of humans made a pact with the Archfiend, Nethos, in order to gain great power. Their greed did not end there, and eventually their avarice and wickedness brought ruin to their kingdom. When crusaders from the south conquered the dark kingdom, they sowed salt and holy water into the soil to try and cleanse the corruption, but it was not enough. The region fell to ruin, and civilization never returned to the area.
The descendants of the wicked nobles have become the Tiefling, and their lands have long decayed into what is now known as the Northern Wastes. The ruins of ancient civilizations hint at the wealth and greatness of the old kingdom, but now they are the homes of orcs, goblins, and barbaric tribes of humans alike.