Introduced in 1971, the microprocessor is basically the fundamental driving force and brain of all of the digital equipment we use today -- from iPhones and computers to notebooks and tablets.
A central figure in the narrative of how the west was won, Wyatt Earp and his story became an American legend. Part of the Wild West collection.
Roman Catholic priest Father Charles Coughlin used the power of radio to rail against the nation's economic system in the Depression.
Quilting and the intimate clues it yields about the lives of 19th century women.
General Douglas MacArthur led American troops in World Wars I and II before being fired by President Harry Truman during the Korean War.
America's first First Lady defined the role of the President's wife and in the process changed the face of the American presidency.
In 1897, Arctic explorer Robert Peary caused a sensation when he returned from Greenland with five Eskimos.
A new religion called spiritualism affected the nation in the era of Abraham Lincoln, P. T. Barnum and Frederick Douglass.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.