The basis of the village and its location based on historical texts

Some of  region in duration history for special geographical position or to reason vicinity in edge big city and or natural agents and unnatural lose own important  and Forget inchmeal. As if that Only residual name of they in sources ancient. Even nowadays also exist some cities  or region  geographical who as yet not determined geographical position and situation that and among that may allude  to Dahestān. Several  stair allud  to Dahestān in sources ancient among  contexts Grecian and inscriptions sassanian era. Even name Dahestān incoming  in some sources Islamic period. But nowadays incognizan Dahestān except historians, recognizers and instructive Iran culture. of course they cant too determined confine Dahestān geographical. As if Shafiei Kadkani this case confession  after vast researches. But sound by new search and quest in sources ancient, should know Dahestān in vicinity  new-fashioned shahrod. However, by using historical methodology and by predication  and historical evidences, in this research it has been tried to examine geographical position Dahestān in befor Islam shell out and with  attention to  sources that period, definition position present Dahestān.