On a cloud-spackled Sunday last June, protesters in Bristol, England, gathered at a statue of Edward Colston, a seventeenth-century slave trader on whose watch more than eighty thousand Africans were trafficked across the Atlantic. “Pull it down!” the crowd chanted, as people yanked on a rope around the statue’s neck. A few tugs, and the figure clanged off its pedestal. A panel of its coat skirt cracked off to expose a hollow buttock as the demonstrators rolled the statue toward the harbor, a few hundred yards away, and then tipped it headlong into the water.