War of the Gods
5,000 years ago, the Elven Goddess Lloth betrayed her Pantheon and incited a civil war amongst the elves. Following this act of treachery, The other gods of the Pantheon went after her, but she had taken allies with some of the darker gods and greater demons of the planes. The Elven Deities had no choice but to ally themselves with the Pantheons of many other races as the Gods themselves fought across the planes. In the end, there was no clear winner, several gods were slain, and Lloth was cast down severed from the transitive planes for her transgressions. The rest returned to their duties, nursing the grudges created.