Lemuria

From AoCWiki

Lemuria, during the Pre-Cataclysmic Age, was an Island to the east of the Thurian continent. It was inhabited by the Lemurians.

During the Cataclysm, the island sank into the ocean. The Lemurians fled by ship towards the mainland, where they were enslaved by an ancient race already living there. After years of slavery the Lemurians rebelled against their masters, driving them west. The Lemurians then took the name of Hyrkanians.