The contexts and factors of Kharijites presence in Khorasan at the end of the Umayyad period and the first Abbasid era

Khorasan witnessed the presence of political, ethnic and religious groups in the first Islamic centuries. Kharijites were one of the relatively influential groups in Khorasan. They found influence and prevalence mostly in places where the weakness of the Umayyad and Abbasid rule is visible there. Therefore, Khorasan had favorable conditions for their presence and activities. The most important issue of this research is to explain the contexts and factors that caused the presence of Kharijites in Khorasan and their influence on the emergence of anti-Umayyad and Abbasid movements and revolts. This research is based on original historical sources and is organized with a descriptive-analytical method. The findings of the article show that factors such as the migration of Arab tribes to Khorasan, the pressure of the Umayyad rulers on the Kharijites in Iraq, the vicinity of Khorasan to the Active foci of the Kharijites in the southeast of Iran, the distance from the Capital of the Islamic Caliphate and the dissatisfaction of the people of Khorasan with the Umayyad and Abbasid rulers caused the formation of some Kharijites movements in Khorasan. It also seems that the presence of the Kharijites in Khorasan was influential in the fall of the Umayyad and the weakening of the authority of the Abbasids in Khorasan.