Equipment failure, human error and bad luck led to the country's worst nuclear accident in 1979.
The contradictory history of a dam that became a statement of American power and prestige.
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
William "Buffalo Bill" Cody's legendary exploits helped create the myth of the American West that still endures today.
A brilliant scientist, Oppenheimer was tasked with the development of the atomic bomb during World War II.
The worst epidemic in American history killed over 600,000 Americans during World War I.
When two passenger ships collide off Nantucket in 1909, 1,500 people rely on 26-year-old Jack Binns to operate a new technology - wireless telegraphy - to save them all.
The worldwide migration by eager gold-seekers turned California into a land of opportunity and fierce competition.