Beroutz, also called Drimou, was the fifth planet of the Thisspias system. It was orbited by the moon Hunder. In 8000 BBY, the Tirikkin of Hellenes Gracca built four sublight colony ships to colonize Beroutz. A collision with space debris resulted in destruction of all but one of the ships. The surviving vessel crashed on Beroutz. The people of Hellenes Gracca wrongly believed all four ships were destroyed, and the survivors of the crash failed to establish contact with their homeworld. They technologically regressed, resulting in a primitive lifestyle. They split into two main cultures, the Deriada, village dwelling hunters with a matriarchal culture, and the Mousa, an artistic people living in democratic city-states.