Conquest to Conversion

North Africa (west of Egypt) is a compelling locale to explore how and when a Muslim minority became the Muslim majority. Previous scholarly approaches to medieval religious change rely almost exclusively on much later written sources, and as a result, little is understood about the religious landscape in which believers operated in. This article examines critically the material evidence for mosque construction and church abandonment and proposes certain tipping points in the process by which Islam become the dominant religion. While mosque construction reveals more about state and elite religious investment than the believers who may have used them, other forms of evidence, including funerary evidence, dietary practices and inscribed material culture, occasionally give us an intimate glimpse into the practices of simple believers. The evidence shows that the chronology of religious change differs between those regions under Byzantine rule (eastern Algeria, Tunisia, coastal Libya), and those ruled by Berber chiefdoms in late antiquity. Much of the latter converted in the 8th century, whereas the late 9th century marks the mass conversion of town dwellers from the Byzantine core and a first period of crisis for Christianity. This early conversion was an important factor in the collapse of the caliphate in North Africa and the emergence of successor states that used Islam as the main idiom through which to establish and legitimize their right to rule.