Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The remarkable story of how a railroad was built connecting California to the East.
The worst epidemic in American history killed over 600,000 Americans during World War I.
Originally settled as a mail stop, Las Vegas changed from an Old West vacation town, to a mafia haven, to the "Atomic City" and "Sin City."
The story behind the development of the oral contraceptive that put women in control of birth control.
Robert Moses fueled some of the most ambitious -- and controversial -- public works projects ever conceived.