An African-centered account of the protracted battle to end the slave trade, connecting local and global histories In Worlds of Unfreedom, Roquinaldo Ferreira recasts West Central Africa as a key battleground in the struggle to abolish the transatlantic slave trade between the 1830s and the 1860s. Ferreira foregrounds the experiences and agency of enslaved Africans, challenging Eurocentric narratives that marginalize African participation in abolition efforts. Drawing on extensive archival research across multiple continents, he shows how enslaved people actively resisted the oppressive systems that sought to commodify their lives. Doing so, he integrates microhistorical analysis with broader world history, exploring individual trajectories to unravel complex global phenomena. Worlds of Unfreedom bridges a crucial gap by connecting Atlantic and Indian Ocean histories, revealing how abolitionist measures often camouflaged new forms of labor exploitation and forced migration under emerging colonial regimes. Ferreira's analysis spans the globe, from Luanda, the kingdom of Kongo, and the Lunda Empire to Havana, Rio de Janeiro, New York City, and Réunion Island. He examines the South Atlantic as a space where politics and race-making were deeply intertwined, with ideas and identities crossing and recrossing the ocean. He considers Portugal's strategic use of abolition efforts for territorial expansion, its impact on the kingdom of Kongo, and the intricate networks linking West Central Africa to Cuba and Brazil. With Worlds of Unfreedom, Ferreira shows how multiple actors, including Africans, built anti-slave trade politics from the margins. His nuanced, Africa-centered perspective on abolition highlights the resilience and contributions of enslaved Africans in shaping the course of history.