At the height of segregation, an unlikely alliance between a black medical genius and a white surgeon led to a pioneering medical breakthrough.
Between 1890 and 1920, 12 million people emigrated from Europe arriving in New York Harbor and Ellis Island.
John Philip Sousa was America's favorite bandmaster.
Newspaper magnate William Randolph Hearst fought to suppress a film by Orson Welles, a film that would become one of cinema's masterpieces.
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 international manhunt to catch the killer of Martin Luther King.
The country's oldest beauty contest has become a battleground and a barometer for the position of women in society.
Silent film actress Mary Pickford played a pivotal role in bringing Hollywood into the center of the motion picture industry.