Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
The most daring and innovative accomplishment at the turn of the 20th century.
At the height of segregation, an unlikely alliance between a black medical genius and a white surgeon led to a pioneering medical breakthrough.
A marvel of engineering, architecture, and vision, the story of the Beaux Arts structure on 42nd street that forever changed midtown Manhattan.
Politics, culture, race relations, and technology in a year of change.
Engineer James Eads tamed the mighty Mississippi, turning New Orleans into the second largest port in the nation.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.