Angelene Forester remembers Walter Freeman's first patient -- her mother Ellen Ionesco.
A marvel of engineering, architecture, and vision, the story of the Beaux Arts structure on 42nd street that forever changed midtown Manhattan.
During the Great Depression, Americans built the Hoover Dam, one of the greatest engineering works in history.
The story behind the development of the oral contraceptive that put women in control of birth control.
The U.S. and the Soviet Union race to build the hydrogen bomb during the Cold War, thus beginning the nuclear arms race.
The most daring and innovative accomplishment at the turn of the 20th century.
The effort of pioneering researchers to conceive babies through in vitro fertilization.
In 1960, Francis Gary Powers' U-2 spy plane was shot down over the Soviet Union.
Robert Noyce's invention of the microchip launched the world into the Information Age.