the Legacy of Loki
The Naga are a race of creatures, resembling a combination between a man and a snake. Their culture is primitive, if anything that resembles a Naga culture really exists at all. However, the Naga have unusual access to advanced weaponry, and an intricate knowledge of poisons and other methods of death-dealing. This has led many scholars to believe that the Naga are a subservient race, ruled by some more sophisticated race or being.
Legends suggest that the Naga were created by dragons, who bred humans with snakes hoping to instill men with the features of their lesser cousins that dragons found appealing.
There are also a very few references to the existence of a Naga empire at some point in history, though the subject is very contentious amongst scholars. Even though these references exist, it is highly unlikely that the primitive Naga ever had the capacity to forge anything grander than a large settlement. Therefore, any such references must simply be gross exaggerations of large Naga dwellings.