Between the end of the Seven Years war in 1763, and the abolition of slavery within its Empire in 1833, Britain's maritime engagement with the wider world was transformed. The essays in this book explore different aspects of that transformation, and in so doing assess the significance and complexities of Britain's maritime world in this key period, which was characterized by the contradictory and competing forces of revolution and reaction, 'liberty' and imperialism, war and peace, enlightenment and enslavement. They were originally delivered as lectures in a series jointly sponsored by the Institute of Historical Research and by the Centre for Imperial and Maritime Studies at the National Maritime Museum.