Behistun Inscription
At the end of Yaz II/B (8th-7th/6th century BC) the Murghab oasis (Yaz Depe, Aravali Depe, Takhirbay Depe) became deserted. It is probably explained by the bloody revolt of Frada (521 BC) mentioned in Behistun Inscription in which reportedly 55,243 Margians were killed and 6,972 taken as prisoners, and the conquest of Bactria.