Dr. Alfred Crosby, author of Epidemic and Peace 1918: America's Forgotten Pandemic.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
They were the first to brave the unknown.
The dramatic story of the streamliners is one of remarkable achievements and opportunities lost.
During the Great Depression, Americans built the Hoover Dam, one of the greatest engineering works in history.
Politics, culture, race relations, and technology in a year of change.
The effort of pioneering researchers to conceive babies through in vitro fertilization.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
The unusual life of David Vetter, who lived permanently inside a germ-free environment due to severe combined immunodeficiency.