Io'vakas is destroyed the city of Io'lokar is built

Io'vakas is destroyed the city of Io'lokar is built.

Io'vakas is destroyed by the dragons due to a small sect of yuan-ti who sought more power and the deepest mysteries of draconic magic for themselves. Arnaarlasha (the noble gold dragon great wyrm of the Warders) along with a dozen elder dragons shepherd a thousand survivors of Io'vakas to the slopes of Mount Erishnak where they create the city of Io'lokar, the City of Knowledge.