In 2313, the Gatherer leader Penthor-Mul and his followers targeted the outpost Tezber. Before the raid could commence, Mul was apprehended by the Acamarian Internal Security in Felker City. Charges were filed against Mul, who was detained in the Bruno Prison. A week before his trial, he was transferred to the Dylhuc Detention Center. As trial was beginning, Mul was, as later investigation revealed, assassinated by the sole surviving member of Clan Tralesta.
In 2366, this district was mentioned in the court records of Penthor-Mul, which were accessible to the crew of the USS Enterprise-D via the Acamarian planetary database. (TNG: "The Vengeance Factor", okudagram)