The famed Ulfberht sword is believed to have used steel forged in northern Iran, and transported through the Volga trade route (that followed the Volga river in

The famed Ulfberht sword is believed to have used steel forged in northern Iran, and transported through the Volga trade route (that followed the Volga river into the Caspian sea): http://www.pbs.org/wgbh/nova/ancient/volga-trade.html http://www.pbs.org/wgbh/nova/ancient/volga-trade.html