Geography
The planet of Iaus is made up of a two great continental landmasses, one of which is the continent of Faerun.
Faerun
Faerun is made up of the greater regions of the Western Heartlands and Isrugard to the west, and Eberron to the east. Both regions are home to a number of nation and empire-controlled territories, as well as any number of small, neutral settlements and independent islands.
Western Heartlands
The Western Heartlands is divided into the northern territory of Parlusia and the southeastern territory of Yrso'sidia. The Lords Alliance has claim to most of the territory with its governing nations each possessing a large swath of land.
Parlusia
Yrso'sidia
Other landmarks and regions that exist within the Western Heartlands are:
Isrugard
The Assembly of the Sword Coast
A place thought to be lost to time, known only through fairytales of wonderous cities of high-fantasy and magic. The fabled land of Isrugard was actually the ancestral home of the first humanoids. Sacred texts described many of these races going on a great pilgrimage to colonize what would become the Western Heartlands and Eberron. Stories of their old homes were forgotten, lost in swaths of historical texts that became buried in ancient libraries. The races that remained, formed powerful, independent city-states and tribes that formed a loose assembly. The leaders present at this assembly rule independently of one another, and use meetings to avoid full-scale war with one another. The leaders and most of their nations remain unknown for now.
Eberron
The Conclave
A coalition of third world nations and disenfranchised races united in the late 1700s under the Triumvirate: the Goliaths of Jotunrath, Warforged of Terminus, and Drow of Val Royeaux. Independent city-states and warring tribes fought for scraps of land in the aftermath of the Goliath Uprisings. The Triumvirate carved a large swath of land for themselves in the aftermath of the Seven Year War, allowing loyal city-states and bannermen to claim the remnants, and leaving those who continued to oppose their rule, to die fighting for what was left over. Small pockets of humanoid natives who settled when the first expeditions landed, still call the continent of Eberron home. Existing in a complicated grey space between nations and cultures.