ISC Prime was the capital planet of the Interstellar Concordium. The Liberation of ISC Prime happened in the 2380s, sealing the defeat of Jahrod. (Star Trek: Unity)
One of the main galactic toy retailers, Children's Paradise, had its flagship store in an unnamed shopping mall on ISC Prime. (RIS Bouteina: "Toy Dream")
Background[]
The TOS video game Starfleet Command Volume II: Empires at War, set in the 2290s, portrayed what was to become ISC Prime as Veltrassa. Therefore, the ISC must have renamed the planet between 2290 and 2380.