War of the Scales
A period from 523 to 554 CF during which the civilized nations of Liskor, Cendriane, and Nerath fell under attack from a concerted effort of subterranean enemies. Yaun-ti cults began an uprising that toppled the monarchy in Liskor while the snakemen themselves emerged from the jungles in the south to threaten both Liskor and Cendriane borderlands. Meanwhile, the Duchies of Nerath were attacked by sea. Sahaugin crippled oceanic transportation and prevented the largely naval nations from all but the most sporadic contact with each other by sea, and effectively severed Nerath from its protectorates in the eastern frontier.