The Galatean Exodus

The violent mass immigration of Titania and her Sylvari soldiers into Xelestar aboard the vessel, Galathea. This event would so dramatically change the course of Xelestar's history that major events on the planet would be classified as being BGE ("Before the Galtean Exodus") or PGE ("Post-Galathean-Exodus"). The Sylvari God of magick, Synor, volunteered to reside at the center of the Sylvari's vessel in support of his worhippers' endeavors as all believed his power to be unlimited. However, shortly after arriving in Xelestar, it became celar to all the travelers (including Synor) that this new realm's creator, The Nascency, was much less generous with access to magick than the Gods that ruled the Sylvari home plane of The Feywilds, Titania and Oberon.
In particular, the sudden proven existence of these extraplanar deities greatly upset mortalkind as it directly challenged the previously understood legitimacy of The Twelve Pillars of Creation, and immediately disproved the tenets of Nascent Design that immediately linked certain forms of magick with morality and one's way of living, as Titania was seen as vicious and unjust which was previously believed to be forbidden to masters of White Magick, such as herself.