Great Draconic Summons

A powerful (and quite mad) mage from Kilustari named Augustus Warrington created a magical device that "summoned" all dragonkin to his tower in the mountains just south of Kilustari. This summons created a psychic compulsion for all dragons and dragonkin, which apparently affected the entire world of Eona.

Warrington was slain, and his device destroyed, but not before enough Dragonborn arrived that they decided to remain, and the nation of Versviejer was born. The area immediately around the tower was then named Okarverthicha.