Fey Shift

About 2300 years ago, Cemi: The Realm of the Fey orbited too close to Terranus, the Prime Material plane. During an Elven ritual on Ciri, the Equinox Peak happened to coincide, causing many elves to accidentally plane shift to the Material Plane and our world of Creshan.

Unable to return, they settled on the continent of Hydaelyn, and then Eroedon north-east peninsular, now called Olma Palis.