“The past is never dead,” wrote William Faulkner so famously. “It's not even past.” Indeed, the stories we tell ourselves about the past, always seen through one looking glass or another, are as much about the present and the future as they are about eras long gone. But what happens when those stories get things terribly wrong? What are the most dangerous historical inaccuracies and myths pervading our culture today? And what would it take for all Americans to accept historical facts that tell us ugly things about our ancestors — and ourselves?