The abolition of slavery across European empires resulted not from parliamentary enlightenment but from sustained resistance by enslaved people themselves, combined with economic pressures, military calculations, and decades of organizing by abolitionists who faced violent opposition. From Caribbean plantation revolts to transatlantic networks smuggling testimony into European capitals, from maroon communities establishing independent societies to formerly enslaved individuals purchasing family members' freedom, these struggles reshaped legal frameworks and challenged the foundations of colonial economies. This book examines the diverse strategies through which enslaved people and their allies fought for freedom across British, French, Spanish, Dutch, and Portuguese colonial territories. Drawing on plantation records, court documents, abolitionist correspondence, and oral histories preserved by descendant communities, it traces how resistance evolved from individual escape and work slowdowns to organized rebellions, legal challenges, and international advocacy campaigns. Each chapter explores a specific dimension of freedom struggles: the Haitian Revolution's defeat of European armies and establishment of the first Black republic, the British abolitionist movement's mobilization of consumer boycotts and parliamentary pressure, maroon societies negotiating treaties with colonial authorities, enslaved people using imperial courts to challenge ownership claims, and the gradual abolition processes that often maintained coercive labor systems under different names.