In 1960, Francis Gary Powers' U-2 spy plane was shot down over the Soviet Union.
The grave truth behind modern forensics was discovered in 1920s New York.
Politics, culture, race relations, and technology in a year of change.
The effort of pioneering researchers to conceive babies through in vitro fertilization.
A Utah farm boy builds a prototype for a television, but is thwarted by movie studio executives wanting to control the technology.
The remarkable story of mid-19th century ingenuity and perseverance during the laying of the transatlantic telegraph cable between North America and Europe.
The historic journey of Apollo 8 captivated the world in 1968 -- a bright spot in a year marked by political assassinations, race riots, and the Vietnam War.