A Brief History of World Slavery: What Happened, Why It Happened, And What We Should Do About ItSlavery was a shameful thinga dark and horrible part of human history. It should never have happened. But it did. Most people, however, don't know what really happened, why it happened, how it happened, or the extent to which it happened. In this brief, easy to read book, Dr. Glenn Rogers provides an overview of slavery from when it began nearly 10,000 years ago to the slavery that still exists today. How should we think about what happened? What, if