In the 1940s Dr. Walter Freeman gained fame for perfecting the lobotomy, then hailed as a miracle cure for the severely mentally ill. But within a few years, lobotomy was labeled one of the most barbaric mistakes of modern medicine.
George Eastman introduced the Kodak and Brownie camera systems and transformed photography into something anybody could do.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
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.
The first around-the-world air race was sponsored to prove that the airplane had a commercial future.
The unusual life of David Vetter, who lived permanently inside a germ-free environment due to severe combined immunodeficiency.
They were the first to brave the unknown.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
The worst epidemic in American history killed over 600,000 Americans during World War I.