Radical Reconstruction, the world's first large-scale experiment in interracial democracy, sweeps across the South; white resistance flares into violence. Northern commitment to Reconstruction wanes...

Five ingenious scientists start their epic journey on the other side of the world to hunt for gold. Kate Humble joins the team of modern-day prospectors as they follow in the footsteps of the...

Despite a greatly reduced fleet, the U.S. Navy fights back in the Pacific in the tremendous battles of Coral Sea and Midway. At the same time, Russia holds Stalingrad against Hitler's fierce...

From a Caribbean island inhabited only by monkeys to Atlanta's Yerkes Primate Center, this episode studies chimpanzee "culture;" shows primates sharing their possessions; and considers whether...

Alan Alda investigates how people create memories and how as they age, memories become slippery and elusive, sometimes vanishing forever. He visits two men who live entirely in the present or the...

Witness the achievements of two men who came together in an unlikely time and place to leave the world a life-saving legacy. In 1930s Nashville, white surgeon Dr. Alfred Blalock and black...

Washington, W. H. Harrison, Grant, Eisenhower: National heroes renowned for selfless service to country often become Commander-in-Chief, rallying people to their sides by appearing to stand beyond...

When Hacker discovers that the liquid ooze that feeds the animals of EcoHaven also gives him a super energy boost, he decides to drain the pond and take the ooze home.  He builds a fort around the...

Acupuncture. Herbal remedies. Magnet therapy. Consumers and patients have made alternative and "complementary" medicine a billion-dollar industry. But do these and other alternatives to traditional...

Big questions don't have easy answersthat's what makes them bigbut it's fun asking them anyway," says Alan Alda, about to meet scientists tackling some of the biggest questions of the times: Is...