This book places the insurgent group Boko Haram, which has terrorised northeastern Nigeria through the last six years, in an historical and cultural context. It examines cultural changes in the lands south of Lake Chad through deep time, showing how these ancient processes can help us think about Boko Haram's activities in the present. The archaeological and documentary record for this area is unusually rich for sub-Saharan Africa, and allows us to understand Boko Haram within an historical narrative that stretches back directly five centuries, with cultural origins that stretch even deeper...