Murderer, martyr, hero - John Brown's violent crusade against slavery would divide the nation and spark the Civil War.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The young CBS reporter changed his pacifist ideals after reporting on the rise of fascism in Europe during World War II.
The ultimate frontiersman, Carson inspired popular novels before being associated with the "Long Walk" of the Navajo people.
In 1897, Arctic explorer Robert Peary caused a sensation when he returned from Greenland with five Eskimos.
Bascom Lamar Lunsford and his campaign to preserve mountain music and dance.
The African American jazz composer and bandleader performed regularly at Harlem's Cotton Club, leaving a legacy in music.
General Douglas MacArthur led American troops in World Wars I and II before being fired by President Harry Truman during the Korean War.