Aiwanj

Aiwanj lies near the meeting of the Kafirnigan and the upper Amu Darya, the great river known in antiquity as the Oxus. Medieval geographers called this place Awdhaj or Udhaj, and some reckoned that the river acquired the name Amu Darya only below the junction. The Kafirnigan was also known as the river of Qubadiyan, after the district through which it flowed before reaching the Oxus.