The Kharijite Rebellion was a major Kharijite uprising against the Abbasid Caliphate between 866 and 896. Centered in the districts of Mosul and Diyar Rabi'a in the province of al-Jazira (upper Mesopotamia), the rebellion lasted for approximately thirty years, despite numerous attempts by both the central government and provincial authorities to quell it. It was finally defeated in 896 after the caliph al-Mu'tadid (r. 892–902) undertook several campaigns to restore caliphal authority in the region.