The strategic importance of ar-Raqqah grew during the wars at the end of the Umayyad period and the beginning of the Abbasid regime.

Although Ma'n fought against the Abbasid Revolution, he reconciled himself with the Abbasid regime and both he and his sons, Za'ida and Sharahil held governorships and high military posts.

Of Khurasani origin, according to al-Kindi he was originally an unimportant member of the so-called abna' al-dawla, the Khurasani troops that formed the mainstay of the Abbasid regime.

After the overthrow of the Umayyads, the new Abbasid regime quickly resumed their predecessors' attacks on the Byzantine Empire, the first being recorded in 756.

Reacting to mounting persecution by the Abbasid regime, in 762 they launched a rebellion, with Muhammad raising in revolt Medina in September and Ibrahim following in Basra in November.

Through Khazim, the family achieved a prominent place among the Khurasaniyya, the Khurasani soldiers who had come west during the Revolution and formed the main power-base of the early Abbasid regime.

In less than 5,000 words, he discusses specific problems facing the new Abbasid regime.

Both al-Hasan and his brother, Humayd ibn Qahtaba, were important military leaders in the early decades of the Abbasid regime.

The inclusiveness of the Abbasid regime, and that of al-Mansur, saw the expansion of Islam among its territory; in 750, roughly 8% of residents in the Caliphate were Muslims.

Under Abbasid regime Khalid rose to the headship of the department of Finance (diwan al-Kharaj) This department was concerned with Taxation and Land Tenure.