|Creation||19 Kindle 8426 DE|
|Native||Bal-Kriav, Ráglauth, Osâchar|
In the Dawn Era, Tarâk created the Grimlock race from mortal captives. This was done by exposing them to the Decomposition String. The chaos infusion that came with this resulted in humanoids with brutish bodies. Though their bodies bely dumbness, they are anything but, with an average intelligence equal to some Human races.
In the Demon Spawn War, at the Toadoolp Twists, grimlock soldiers in the service of Tarâk, were cast into the mutative ichor of giant entropic pools where they suffered the agony of being transformed into the first kuo-toans. This led to a great enmity between Tarâk and Blibdoolpoolp, with the pawns of this conflict Tarâk's grimlocks and Blibdoolpoolp's kuo-toans.