Politics, culture, race relations, and technology in a year of change.
Engineered by William Barclay Parsons, the 21-mile, four-track route of the New York City Subway was the largest public works project in history.
A gripping tale of medical intervention gone awry, and one of the most barbaric mistakes of modern medicine.
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
The U.S. and the Soviet Union race to build the hydrogen bomb during the Cold War, thus beginning the nuclear arms race.
The worst epidemic in American history killed over 600,000 Americans during World War I.
During World War II, more than a thousand women signed up to fly with the U.S. military as WASPS.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.