The contradictory history of a dam that became a statement of American power and prestige.
A Utah farm boy builds a prototype for a television, but is thwarted by movie studio executives wanting to control the technology.
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
In 1960, Francis Gary Powers' U-2 spy plane was shot down over the Soviet Union.
The international race to develop biological weapons during the 20th century.
Politics, culture, race relations, and technology in a year of change.
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.
It was the deadliest workplace accident in New York City’s history.