The weaknesses of historic texts in iran

This research is written to answer this question that: what are the important weaknesses in historic research in iran? the hypothese of research shows that the main weaknesses  in two cases are: method in research history and the second is content. In the first case the most importanr are: ambiguity in the historic research concepts, description instead of analysiy  and the tendency to the oral sourses. In tee second case the important are: qualitative paradox in the historic texts, cultural management  in 6 casasse that are: nationalism, no attention to historic geography. The society of this  reseach are historic texts that are: Tabari , zen – o –akhbar , Moruj – o –zahab from Masudi, gardizi history, Alkamel o fe tarikh from ebn – e – asir , Ibn – e – khaldun  history. beihaghi  history, Tarikh – e -  jahangosha – e - joveini  and the contemporary historians  that are: nafisi,taghi zade, vavandi,etc.