 Earlier a lack of significant archaelogical remains from the Median and Achaemenid periods had prompted suggestions of other sites for Ecbatana.Assyrian sources never mention Hagmatana/Ecbatana.Some scholars believed the problem can be resolved by identifying the Ecbatana/Hagmatana mentioned in later Greek and Achaemenid sources with the city Sagbita/Sagbat frequently mentioned in Assyrian texts, since the Indo-Iranian sound /s/ became /h/ in many Iranian languages.