The Root Queen and the Elves on the Material Plane

In the beginning times, the Gods decided to create Order out of the dead God Kek. His body became the Material Plane, his blood the oceans and so on. At the end of the reshaping, there were left some of his stray thoughts. Silvanus allowed these to shape themselves with some order into beings. These beings became the first Fae. At first, Silvanus let them live in his forests, but he disliked how they influenced and changed the reality he had created. So, he made a new plane for them two steps to the left of the Material Plane where they could play and influence reality as it influenced them.
Whilst these beings were interesting, they were too chaotic even for Silvanus, god of the Wilderness. His creation, though wild, had rules and cycles and the Fae ran roughshod through those, breaking rules of life, death, seasons, renewals.
As the Fae were the only example of intelligent life in existence, Silvanus took some of their essence to create his true children, the Elves. Wary of his past experiences, Silvanus chose to place his Elves in the Feywild he had created.
As beings with their own minds, the Elves grew, learned and made decisions in their time in the Feywild. Some followed Silvanus and his teachings, others fell under the influence of various Fae beings. Some chose to only follow themselves. During this time they explored the extant planes and Silvanus gifted them the woods of the Material Plane, though the Elves all chose to reside in the Feywild.
Over time, the first born race of Ara was joined by other races. The Dwarves in their mountains, the men on the planes, the Halflings of the hills and the Gnomes of the Earth. The various twisted creations of Oloch and his lieutenant at the time, Gruumsh.
The Fae noticed the power of the divine in these mortals. Humans, in particular, with their mayfly existence, had a power in their brief lives of inspiration, creation and fecundity gifted to them by the gods. One dark Fae began to seduce them into her woven webs of magic and investigate and experiment to uncover the deep power that lay within mortals.
Over centuries, she and her followers of Elves discovered that the deep divine gifts in mortals could be exploited to reap power for the Fae. Deals and bargains with mortals could reap gifts that empowered the Fae that granted them, often unknowingly for the mortals. Most powerful of all were those associated with the fruitfulness of the mortals – the first born child, their children, their beauty.
It was this dark Fae that discovered, under a certain circumstance, such a well of power could be generated that a creature such as herself could be elevated to a level of power to rival that of her creators, tapping into the godliness of her origin as the thought of a God. She set her followers to work to that end and, after many machinations lost to time, managed to acquire what she needed: 3 kin, born of one Human mother and 3 other fathers, and all in her service and influence.
She and her followers sacrificed these on a powerful altar under a new moon. The power flowed from their mortal souls, empowering her with a devastating dark magic, transforming her to reflect the webs of plots she had wrought. She took upon herself a new name, Lolth, and declared herself a god.
Silvanus was enraged how not just she, but many of his true children had betrayed him. Lolth had become too powerful for Silvanus to eliminate entirely, but he banished her and her followers from the Feywild and the surface of Ara, condemning them to the Underdark.
The other Elves suffered too. Silvanus lost his trust in them and began to treat them poorly. Some Elves through in their lot with other powerful Fae to protect them, growing more wild and Fae-like, becoming what we now call the Eladrin.
Most of the others gathered together behind a powerful Elven leader. She led them to confront Silvanus for mistreating them for a sin they had not committed. He was moved, but could not bear to look so closely upon the faces that resembled those that had betrayed him. Whilst promising he would always have his favour, he exiled them from the Feywild.
The leader, who others began calling the Root Queen, lead the Elves through the few remaining weak-spots in the veil between the Feywild into the Material Plane.
There they lived for some while in harmony before the cracks again began to show. Some Elves felt, as the firstborn race, they should live in great splendour and glory, focussing on the higher things. Others felt they should try to regain the favour of Silvanus by living in harmony with the forests. More wanted to take to the seas and explore Ara and discover what may be. This warring and bickering enraged the Root Queen so much that one fateful day, as the leaders of the various factions debated in her Council, she let out centuries of rage and betrayal and exiled them all to go their various ways.
The Elves left her. Some, who favoured the Sun travelled south and founded the Upper Kingdom of Akhret. Others who favoured the Stars went into Kalvak and founded a Dynasty. Others set to the seas and were lost to records. But she was most hurt by her children of the forests, many who left the Forests of the North with her, travelling South.
She was heartbroken at the loss of the lost Elves that she viewed as her children. The loss only became more painful as the diaspora grew, Kalvaki High Elves spread to Mitzu and the Islands of the South when the lines in Kalvak began to fail and breed with Men, when the Woodelves separated into ever smaller nomadic tribes, some losing their ancient woods as the domain of Man encroached. But her word was law and what was done could not be undone. However, one declaration she did make – that any who could unite any of the shattered tribes of her children would be forgiven Exile for them and their reconciling Tribe.