Between the 1500s and the 1800s, Britain and other Western European nations became the world’s greatest enslavers, transporting 12 million Africans across the ocean and creating a new form of slavery in the Americas: transatlantic, racialised, and industrial in scale. Yet before the 1770s, there was little protest from the Christian churches. Indeed, in the United States especially, many white evangelical Christians were enslavers, and respected pastors defended slavery on biblical grounds. Over two seminars, we will examine first proslavery Christianity, and then antislavery Christianity. We’ll think about the issues this raises for us as Christians today, and what we can learn from both the dark side and the bright side of Church history.