Aeytheri

Aetheron (or what is now Trajan) was the heart of the Aeytheri Empire who ruled for thousands of years under the leadership of a single divine council who never aged and for all intents and purposes were gods. It's easy to mistake the Aeytheri as High Elves, but they are not. They are as removed from High Elves as High Elves are from insects. Though most of history before the Aeytheri was lost, it was known that they had many enemies, both on Erebus and elsewhere throughout the world. Namely, there was Dragonkind. A long and brutal war known as the War In Heaven was fought between the two. Other than this, they found themselves an ancient rival in the Acaethi of the Cascadian Isles.

Aeytheri civilization flourished in large part thanks to their understanding of Warrens (more on that later), and perhaps in larger part to slavery. The Aeytheri existed on a caste system, where the Court of Almalexia included pure-bred Aeytheri, and underneath them the High Elves, and underneath them other elves. Where then does that leave Human, Orcs, and prisoners from their long wars? The Aeytheri Empire had exhausted their Warrens, poisoned them even, to seal Dragonkind within the lands of Valfothr. Sensing this weakness, Firion Trajan I's slave uprising began, and ended at the dawn of the Second Era with the razing of Aetheron and the slaughter of the Aeytheri.

Culture
The workings of Aeytheri Culture is largely ordained from what remains of their architecture, as well as their imprint upon the Warp.

Aeytheri existed in a caste system in which one's position was based on their ancestral blood, for this was the most effective method of stratifying their society which was based on the purity of ones bloodlines. Even modern Eladrin were considered to be impure, and were often given menial tasks - an improvement over the work-slaves that all others found themselves as.

The Aeytheri are often credited with the founding of the Warrens, though the truth of this is often disputed by Arcanists. What can be said, however, is that they were extremely proficient in melding the Warp in a way that offered astral entrances into what we now call Warrens. The ability to manipulate Warrens was considered to be the height of Aeytheri education.

The Aeytheri founded the worship of the Vigil, a religion that has been reformed and is still worshiped today.