War of Ascension

The war of Ascension, also known as the breaking is the great sorrow of the ages. The greatest civilizations known to man were rendered to dust, dragons spilled the blood of their kin, and gods rose to battle gods. What was left is only fading ruins, and a forgotten past that is lost. Only the elder races remember and weep.
The war left the world changed. The upper and nether realms were created, with the Radiant gods casting the Tyrant gods down into the Nether plane and sealed them away. After ridding the world of evil gods, the radient gods left for the upper realm, and changed magic forever. Long gone now are the miracles of the Age of wonder, never have their likes been seen again but for a few closely guarded remnants. Magic has been left weakened, and wizards now cling to old tomes with ancient spells, for they cannot make new ones.