Silent film actress Mary Pickford played a pivotal role in bringing Hollywood into the center of the motion picture industry.
The influential musical pioneers from Appalachia whose recordings lifted spirits during the Great Depression.
The story behind the development of the oral contraceptive that put women in control of birth control.
Their intense faith and strict adherence to 300-year-old traditions have by turn captivated and repelled, awed and irritated, inspired and confused America.
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
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."
Between 1854 and 1929 more than 100,000 abused or orphaned children were sent by train to the Midwest to begin new lives in foster families.
John Philip Sousa was America's favorite bandmaster.