Military: War
"In the darkest hours, the Aeadin descended upon the shores of Olnore with silent purpose, cleansing those they judged unfit for their station in the world, thus commencing the Midnight Purge." -A Midnight Lament, by Aemos Huilth
On the night of the Midnight Purge, the massive army of Aeadin that was sent to destroy Olnore surrounded the continent and, without warning, began purging their sibling species, believing them to be lesser. The waters of Olnore ran red with the blood of the many casualties of that terrible night. This began the Midnight Purge, a war which lasted until the end of the era.