War of the Lich Kings

Centuries ago, the continent of Rok was ruled by 5 powerful Elven Lich Kings. Prior to this, in ancient times, the continent was dominated largely by Tiefling and Dragonborn Nation States and vast untamed wilderness. The Lich Kings, however, made a pact to overthrow these ancient races and over take the land of Rok, dividing it amongst themselves. But soon, the shaky covenant between the Lich Kings quickly dissolved leading to untold of years of war. Minotaurs and Ogres were usually the foremost slave-soldiers in this era of war, controlled by powerful magics. It was when there were but two powerful Lichs remaining that the sparse tribes Dwarfs and Humans banded together to over throw the both of them. As once mighty magical cities fell to ruins, the monsters of the Lich Kings armies were "freed" by the dwarven and human warlords who found them too powerful and wild to rule.