It is always disappointing when a local scholar of an understudied precolonial African state produces mediocrity. Although Ouaddai, fondation d'un empire by Mahamat Seid Abazène Seid has the benefit of drawing on local, oral sources as well as the written literature on Wadai, it does not suffice for an overview or deep analysis of a major state in precolonial Chad Unfortunately, his frankly too brief book focuses mainly on the founder of Wadai (Abdel Kerim) and jumps all over the place chronologically to make a few generalizations about the nature of the state, its ethnic dimensions, and the administrative positions. There are some occasionally bizarre irrelevant references to Africa as the berceau of monotheism and an interpretation of Chad as both Arab and Africa. The latter position seems fair enough, and no one can deny the centuries-long presence of Arabic-speaking populations in Chad or their inclusion in the states like Wadai, Bagirmi, and Kanem-Borno.
He seems to mostly support the idea of Abdel Kerim being of Abbasid Arab origin, but also Maba or at least spoke the language. We are also supposed to believe he married the daughter of the last Tunjur king in the region. The mix of traditions also suggest that he may have studied in Borno and Bagirmi as well as spending time in the Hijaz. His state adopted his name, and Wadai became a regional hegemon (albeit most of this seems to be in the 19th century, not the 17th or 18th centuries?). Wadai's problems with royal succession and internal dissension eventually paved the road to French colonial conquest. Nonetheless, Seid's study points to rational administration through the surveillance and rotation of officials and the non-despotic nature of the state. He rightly points out the limitations of al-Tunisi and Nachtigal, especially as the former was biased and his description of the kingdom should rightfully be seen as mainly reflecting the specific era of Saboun's reign. We also suspect Wadai to have been more in the sphere of influence of Borno until the late 18th century or early 19th. After all, Wadai's first invasion of Bagirmi supposedly occurred at the request of the mai. One also suspects the constant struggles for control of Kanem during much of the 1800s attests to Borno's continued interests in Kanem and the eastern shores of Lake Chad.
Unfortunately, we are forced to rely on al-Tunisi, Barth, Nachtigal, and other outsiders since our surviving corpus of written sources is rather limited. The oral sources have much potential, but Seid's study is too brief and problematic to provide a proper analysis of this major Chadian kingdom (or empire). Moreover, Seid's attempt to interpret the Tarikh al-Fattash and Tarikh al-Sudan to support a Songhai connection or influence on Wadai is difficult to take seriously. Frankly, we do not know to what extent Muslims from the Songhai state were using the "Sudan Road" to reach Mecca. Moreover, the resurgent Borno kingdom as a huge state blocking Songhai from expanding east of Hausaland would suggest weak or limited Songhai influences or impact on Wadai. We find it far more likely that Wadai (and the Darfur Sultanate) owe more to Kanem-Borno and the previous Tunjur state than to any Songhai or Western Sudan societies. One also wonders if any attempt to read the prophecy of a future caliph of Takrur from Tarikh al-Fattash as predicting Wadai's rise is completely misguided.