The Agony of Zchol was a battle fought during the Orion War, a war of independence fought by the Orion people against the 58 races signatory to the Treaty of Kammzdast who held them in slavery, primarily the Nine Worlds Confederation. The Agony left its mark on Zchol. With the conclusion of the war and the golden age of the New Days, Zchol rebuilt, but it was never able to heal all the scars left by the Agony. (FASA RPG module: The Orions: Book of Common Knowledge)