Appearance of towelver Imams class in historical periods and it's position in Safavidgeneral historiography

Since the seventh century, a chapter has been gradually formed in general history specifically called twelver imams class. In this chapter, imams put together and separated from their kins are of gods chosens and among the best people of their time , and like prophets, kings and caliphates are considered to be a separate class in history. Given the rule of sunnis – at least from the prespective of jurisprudence and based on words alone – before safavid era, assigning a chapter to immamia imams has necessitated the emmergance of this phenomena, after the founding of safavid dynasty , this new invention was generally accepted by the historians and appeared as a cliché feature in the general history of this era. The paper at hand tries to intorudce this matter as the emmergance of a new class of imams in history ,examine and analyze the alterations of this chapter in safavid general history in their narratives.given the existence of imams class in pre-safacid era , the work of safavid hostorians was to change its position in history.these historians through chronological alterations , changed he overview based on the prophet-rashidun caliphates – imams to the prophet-imams-caliphates and after improving the ontology changed it to prophets-imams-kings and after that they even t=changed the overview to prophets-imams.