The Bright Sea is its original name. Since Idris split from Hallandren, Idrians call the sea the Inner Sea, to downplay its importance, since Idris was landlocked. Idris and Hallandren usually have different names for geographical features, due to the bad blood between them. However, in many cases, both names stuck, so Inner Sea and Bright Sea are used interchangeably by many.
T'Telir's being located on the Bright Sea, as well as it's access to the Tears of Edgli, have turned the city into a prime port. It is a bustling city of commerce and trade in no small part due to the ease of access the Bright Sea provides. The Bright Sea is partly why Hallandren has become the economic powerhouse it is at the time of the Pahn Kahl rebellion. 
There may be a connection between Endowment and the Bright Sea.
|Characters||Vasher · Vivenna · Siri · Lightsong · Denth · Susebron · Llarimar · Bluefingers · Blushweaver · Nightblood|
|Places||Hallandren · T'Telir · Idris · Kuth · Huth · Tedradel · Court of Gods|
|Magic||Awakening · BioChromatic Breath · Drab · Heightening· Ichor-alcohol · Lifeless · Returned|
|Mythology and Lore||Endowment · Austrism · Five Scholars · Iridescent Tones · Manywar · Kalad's Phantoms|