Drawing upon extensive archival research and a wide range of secondary sources, traces congregationalist missionaries' involvement in domestic and colonial politics in early nineteenth-century Britain. As Michael A. Rutz ably demonstrates, evangelical nonconformists actively campaigned from both the Empire's metropolitan centers and its periphery to extend religious liberty and civil equality in Britain, open colonial territories to evangelization, abolish slavery, and secure civil rights for indigenous peoples. Moving beyond the dichotomizing pictures of evangelical missionaries as either the advance forces of colonial domination or innocuous humanitarians and educators, Rutz carefully examines the humanitarian and theological impulses of the missionary movement while critically examining its political, social, and cultural impact within the larger development of the British Empire.