The Political Condition of Bost in the First Period of Abbasid to the end of Tahirid

Prior establishment of Abbasid caliphate, the city of Bost was overthrown in the hands of their adherents. Nevertheless, due to their representative's imprudence many revolts and uprisings took place in this city which eventually ended to Khawarij dominance of the area. The Abbasid Caliphs launched several proceedings to calm the situation but failed to achieve any conclusion. Another faction called Mutawwiah seeing the condition startedto oppose the Khawarij blatantly. Meanwhile in this condition the cities such as Khorasan, Sistan and Bost were overthrown in the hands of Tahirid who had just raised the flag of independence. Simultaneously another group called Ayyaran came into being in Bost. This group alongside launching a series of uprisings against Tahirid government could resist against Khawarij and gradually got changed to be the superpower of the region (city of Bost) and with the initiation of Jacob Laith's government in Bost, the backgroundsof a great administration of Safari were prepared.