From AionSource.com Wiki
AION: The Tower of Eternity is still under development by NCsoft, and any information related to the game is subject to change with the release of more information.
Lore
In the beginning, the Elyos and Asmodians were both a part of a sacred race in charge of protecting the Tower of Eternity. During the Millennium Wars the protectors were divided into two factions. Following the tragic destruction of the Tower, the two sides turned on one another, each blaming the other for the Tower’s demise, and they became bitter enemies… The two races are now sworn to eternal retribution, consumed by a burning hatred and desire to exact their vengeance.
