The Heretic of Cacheu: Crispina Peres and the Struggle over Life in Seventeenth-Century West Africa (U Chicago Press, 2025) by Professor Toby Green tells the extraordinary story of seventeenth-century West African slave trader Crispina Peres to explore the shifting, sophisticated world in which she lived.

In 1665, Crispina Peres, the most powerful trader in the West African slave-trafficking port of Cacheu, was arrested by the Portuguese Inquisition. Her enemies had conspired to denounce her for taking treatments prescribed by Senegambian healers, the djabakós. But who was Peres? And why was the Inquisition so concerned with policing the faith of a West African woman in today’s Guinea-Bissau?

In The Heretic of Cacheu, award-winning historian Dr. Green takes us to the heart of this conundrum, immersing us in the atmosphere of an otherwise distant setting. We learn how people in seventeenth-century Cacheu built their houses; styled their clothes; healed themselves from illness; and worshipped, worked, and played. Green renders the haunting realities of the growing slave trade and the rise of European empires in shocking detail. By the 1650s, the relationships between Europe, West Africa, and the Americas were already old and tangled, with slaving ports, colonies, and military bases having intermingled over many generations. But Cacheu also profoundly troubled this dynamic. It was globally connected to places ranging from China and India to Brazil and Colombia, and women such as Crispina Peres ran the town and challenged the patriarchy of empire.

For the first time, through surviving documents recording Peres’s case, The Heretic of Cacheu lets readers experience the reality of this unique place and time through a remarkable act of historical recovery.

This interview was conducted by Dr. Miranda Melcher whose book focuses on post-conflict military integration, understanding treaty negotiation and implementation in civil war contexts, with qualitative analysis of the Angolan and Mozambican civil wars. You can find Miranda’s interviews on New Books with Miranda Melcher, wherever you get your podcasts.

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