The Hordelands.

Formerly known as the Endless Wastes, this land has gained a new name among Faerûnians, styled after the vast Tuigan horde that roared out of the east and rode against Faerûn more than a century ago. After these tribesfolk were defeated, some of the fierce, mounted warriors who survived the conflict gathered to form the small nation of Yaïmunnahar. Some others cling to the old ways, mastering the sword and the bow and riding across the steppes on their short-legged horses. Brave merchants still traverse the Golden Way to and from Kara-Tur, but those who return from such a voyage are fewer than they once were.