tbd
The inland sea comprises a massive freshwater lake, about the same size as the North American Great Lakes in our world, formed by glacial melt and since then fed by numerous rivers, none particularly navigable. While usually perceived of as one lake, it could be categorized as several lakes which merged together, and its shape allows some of these to remain almost distinguishable. The peopling of the sea began over 15,000 years ago, with numerous additional peopling events along the way, leaving the area littered with related and unrelated ethnicities too numerous to count. Nomadic peoples still move in now and then, adding their traditions and language to the cultural mosaic, but there are no known complex civilizations with permanent settlements beyond the immediate area of the inland sea. For hundreds of miles beyond the borders of the sea's kingdoms, there is wilderness, sparsely populated only by wild men with no language whatsoever.
The main notable kingdoms of the sea occupy large swathes of land and rule client kingdoms around them, roughly dividing the lake's shores into four spheres of influence: Pranvo in the Southwest, Ledar in the Northwest, Gimnu in the Northeast, and Adrast in the Southeast.