Beginning in 1701, missionary-minded Anglicans launched one of the earliest and most sustained efforts to Christianize the enslaved people of Britain's colonies. Hundreds of clergy traveled to widely-dispersed posts in North America, the Caribbean, and West Africa under the auspices of the Society for the Propagation of the Gospel in Foreign Parts (SPG) and undertook this work. Based on a belief in the essential unity of humankind, the Society's...