In the Varelay Upheaval (2608 LE - 16 HE), lava flowed far into Tha'lith's northeastern tracts. Over centuries, Varelay wrested control of the lava spilling out of Hen'khas. They redirected it along canals back into the dark reaches below, or east into the waters of Sallos.
In the First Epoch, a victim of the Gulimbor Cataclysm (996 - 1203), the Burterinii empire resettled along the coasts east of this volcanic-rich plain. Over the centuries that followed, Zaura's farms and pastures made Burterinii the breadbasket for the entire region, with foodstuffs flowing north to Brucrumus and into the Buccaneer Archipelago.