In general, the texts reveal the spectacle of successive and overlapping cycles of resignation and friction. They explicitly mention sporadic tension and aggravation. This is apparent in the writings of authors such as al-Djāhiz (1964, vol. I), al-Balādhurī (1996), al-Ṭabarī (1991), al-Mas'ūdī (1973), Ibn Ḥawqal (2014), al-Wakī (n.d.) and Ibn Khaldūn (n.d.). It emerges that between the late seventh and early eleventh centuries, bloody conflicts were provoked by enslaved black people. Exacerbated by the spread of enslavement into all areas of activity, the enslaved people's revolt raised chronic concerns. We know that the rebellion unleashed in the lower Mesopotamian valley between 869 and 883 resulted in tragic bloodshed. Spurred on by their early successes, the enslaved rebels extended their protests further afield and directed their attacks toward Baghdad. News spread like wildfire, spreading panic and fear throughout the Caliphate provinces.  
According to the chronicle of al-Ṭabarī (op. cit., vol. V, p. 587), the longest and most bloody revolt lasted for fourteen years and pitted enslaved people against the caliphate army. This contemporary historian of events is the first to provide conclusive evidence drawn from administrative archives and facts he had personally experienced. The author describes in great detail the ups and downs of the insurgency and its spread across the land. His accounts highlight the parallel rise of wealthy bourgeois estate owners and, on the other hand, a considerable core of (mainly African) enslaved people. In addition to forced labour, the latter suffered oppression and relentless misery. We also know that though their movement involved bloodshed, the rebels succeeded in thwarting the expansion of hydrographic and agricultural initiatives in the lower Mesopotamian valley.  
Importantly, it is in this context of rebellion and tragic confrontation that we witness the most violent outburst of images and negative attributes directed