After the 'Abbasid revolution, successful Ibadi rebellions in both North Africa and Oman resulted in the eventual establishment of two Ibadi imamates at Tahert
in present-day Algeria and Nizwa in Oman (this second Omani imamate, which will concern us here, existed from 177-280/793-893).
7 : << Quant a Tahert
, ce nom s'appliquant egalement a la capitale, il y a parmi ses villes [.
The Ummayads of Al-Andalus had access to a supply of ivory channelled from sub-Saharan Africa via Tunisia, and Holed argues that the supplies of ivory to Al-Andalus were further guaranteed by the close relations which were maintained between Cordoba and Tahert
(1992: 43) [ILLUSTRATION FOR FIGURE 1 OMITTED].
The highest point of Ibadi politics was no doubt the Rustamid state of Tahert
(western Algeria), a state that dominated the Maghreb in the ninth century.
After more decades of instability, one form of Kharijism, Ibadism, prevailed over its rivals and, beginning in 160/777, found its political expression in the Rustamid imamate of Tahert