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This study presents a model for the spatial structure of ceramic vessels across the architectural complex of Bazeh-Hur site (6th to 8th centuries AD), using Inverse Distance Weighting interpolation for modelling and Mean Relative Error and Root Mean Square Error for validation and cross-validation of the output modelled surface. The Regression analysis was also used to examine the vessel prediction per square meter and measure the correlation intensity between the values and distance. These geostatistical and quantitative methods not only enable us to characterize the arrangement of the architectural spaces where activities take place, but also to delimit several structures that are corroborated by the excavated areas. As a conclusion, we propose a high probability for the main entrance of the building in southern taq, which is also attested by a chief portico and a broad gypsum floor near to an ancient trade road.

Due to the extensive territory including the fertile plains and the productive population, the Sasanids could attain the powerful and wealthy situation during the late antiquity. Nevertheless, the vast territory caused some problems regarding threatening the political integration of Iran. The eastern provinces locating far from the capital of the Sassanid government were in a very exposed position to invaders coming from Hephthalites as well-known groups of the invading nomads were considered as the main enemy of Sassanid in the eastern Iran. Hephthalites could occasionally determine the international relationships between Iran and its neighbours. Moreover, they played an important role in the formation of the cultural and artistic practices of the eastern Sassanid. In order to recognise the Hephthalites’ influence on the Sassanid Iran, we need firstly to study their ethnical attributes and lifestyles and secondly to know the borders of their territory throughout history. In pursuing these purposes, the paper, while relying on the historical documents, would explain the history of Hephthalites in eastern Iran and describe their material cultures indicating their history and culture. Synchronised study of history, geography, and material culture of the Hephthalites would help us to introduce a new approach to history and archaeology of the eastern Iran in Sassanid period.