War of Heroes
The War of Heroes was a cataclysmic event that ended the Age of Heroes. The circumstances surrounding the war are unknown, but after its events almost every Hero in the material plane was destroyed, as were most of the stronger monsters, demons, dragons, etc. Most pathways into the outer planes were shattered, and mankind lived without the power they once knew.
Since the end of the Dark War, scholars have found new information about the events surrounding the War of Heroes. It is now believed that the War of Heroes wasn’t one cataclysmic event, but rather a social and political change in ideals after a war. Following a massive global battle between not only humanity but the forces of the outer planes themselves (led by Finnoc, the Divine Usurper), the world was united under the newly crowned Nidal of Circadia. Despite the victory of the Heroes, the populace as a whole became disenfranchised with the idea of a group of people wielding so much more power than the common man. Heroes came to be looked upon with scorn, hunted down and exiled until none remained.