During fifty years of political decline at the end of the Ilkhanan Period many political movements took place all over the country. Sarbedaran Movement was one of them and they ruled over certain parts of Khorasan.
Their government caused many significant and principal developments in the political, social, and religious status or the eastern parts of Iran which were quite unique during the histOf)' of that era. These great changes have been surveyed in this research.
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