Fey Genocide

An event that took place in 256. A Skeletal One named Hades used several of his cults, mind-controlling enchantments, and a portal dimension used by high elf cities to gain control of every high elf empire, which were a lot larger and more connected at the time. At an opportune moment, Hades commanded the rulers of the empire to kill or force out every creature in the empires that was not a high elf. Hades was destroyed shortly after, but the damage was done. Wood elves, gnomes, satyrs, nature spirits, and many other fey were either slaughtered or chased from the empire. The angelfolk race was driven extinct.