The Byrsa are natives of Cartago, a forested world frequented by the Goa'uld searching for human hosts. They live in simple villages near the stargate, which they refer to as the "Circ Kakona" or "Circle of Woes." When the Goa'uld arrive, the Byrsa scatter to "the hiding," a series of caves and tunnels that provide shelter and safety. They emulate a culture with Greek and Roman roots, and practice a system of justice known as "cor-ai."
Cross Reference: Cartago, Cor-ai, Hanno
Episode Reference: Cor-ai