The transatlantic slave trade dominated in North America during the 17th and 18th centuries. But by 1808, a different slave trade came to dominate in the young United States, the domestic or internal slave trade.
 Joshua D. Rothman, author of the book, The Ledger and the Chain: How Domestic Slave Traders Shaped America, leads us on an exploration of the United States’ domestic slave trade and the lives of three slave traders who helped to define this trade.