East Faerûn

East Faerûn bordered the eastern expanses of the Sea of Fallen Stars. Here the sea formed a long arm that traveled to the east before turning south to become the Alamber Sea. The northern nations of this mysterious area were termed by some people as the Unapproachable East and the southern nations the Old Empires, and, for a time, the Empires of the Alamber Sea. Many of these nations allowed slavery, and depended on slaves for much of their economy.

After the Spellplague, a few new nations arose in this regions, including a interloper nation from Abeir.

Hordelands

 * Murghôm: After living under subjugation of Mulhorand for years, the farmers and horsemen that lived around Brightstar Lake gained partial independence for some time. In the early 15 century DR, they came under rule of a ruling council known as the Dragon Princes.
 * Semphar:

Old Empires

 * Chessenta: While the city-states of Chessenta were united together for about a hundred years, under the capital of Luthcheq, they remained a nation in-name-only for most of its existence. The war-torn region comprised a number of city-states remained ever-competitive, often competing and leaguing against one another. Despite their differences, they shared common cultural practices and ideals and banded together for the cause of shared defense.
 * Mulhorand: One of the most ancient lands in Faerûn, the formerly-grand empire west of the Plains of Purple Dust empire languished for many years until it was destroyed during the events of the Spellplague, and its lands were taken over by High Imaskar. The nation reclaimed its glory during the events of the Second Sundering, when its gods returned to Toril, just as in the days when the empire was at the height of its power.
 * Okoth: While the ancient sarrukh empire of Okoth fell into ruin millennia to the Days of Thunder, its denizens remained in the Lake of Salt for ages and slowly began to rebuild themselves during the Era of Upheaval.

Unapproachable East

 * Aglarond: This enigmatic magocracy lay on a long peninsula that jutted westward into the Sea of Fallen Stars. Its landward border joined it to the powerful nation of Thay, an enemy power whom the nation constantly opposed. Much of the peninsula was occupied by the Yuirwood, an old forest home to a great number of half-elves and ancient ruins. Along the eastern border were the Umber Marshes. For many years it was ruled by the Simbul, a sorceress who was just as feared as she was revered.
 * Altumbel: The small kingdom encompassed the tip of the Aglarondan Peninsula. Its people retained an isolationist attitude towards the rest of the region.

Vilhon Reach

 * Chondalwood: The lust, tropical forest was home to a great many sylvan creatures, strange walking plants, savage druids, and for many years, a grand population of elves. Its ancient trees housed the greatest number of ghostwise halflings in all the Realms.


 * Akanûl:


 * Thay: This eastern nation was most noted for the evil, Red Wizards who ruled the land, and their extensive use of slavery. Much of the land sat atop a large plateau, with a second plateau and the volcanic Thaymount mountains atop that. The southern border joined the Alamber Sea, an eastern arm of the Sea of Fallen Stars, as well as Mulhorand. To the north was Rashemen, and to the west Thesk and Aglarond. It was separated from the hordelands to the east by the Sunrise mountains. The capital city was Eltabbar.


 * Tymanther: The interloper nation of Tymanther was originally Tymanchebar, an abeiran nation. In the wake of the Spellplague, Tymanchebar was almost destroyed and a big region of it was sent to Faerûn, replacing Unther —which in turn, was sent to Abeir. The surviving dragonborn of Tymanchebar soon tamed the region and built a new nation that they called Tymanther.

After the return of Unther, in 1486 DR, Tymanther lost all of its northern regions, who were reclaimed by the untherites, but maintained and fiercely defended their remaining territory, that was composed of the lands near the Smoking Mountains and south of the River Alamber.


 * Unther: Another older empire, this land lay to the west of Mulhorand, on the west bank of the Alamber Sea. The western border of Unther was next to Chessenta. For most of its story, the capital of this land was the city of Unthalass. The southern part of this land was invaded and occupied by Mulhorand in the late years of the 14th century DR, while only a small nation at the north end retained their freedom. The capital of the unoccupied portion of Unther was the port city of Messemprar.

Unther was utterly destroyed during the Spellplague, when the land of Tymanther fell upon it. A few Untherite lands were transported to Abeir because of the Spellplague. Most of those lands returned to Faerûn in 1486 DR, and the Untherite were able to reclaim the northern region that was part of their old nation.