Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
John Scopes' free speech trial pitted science against religion after the teacher presented Charles Darwin's theory of evolution in a Tennessee school.
The influential musical pioneers from Appalachia whose recordings lifted spirits during the Great Depression.
In 1967, thousands of hippies flocked to San Francisco's Haight Ashbury district.
The Pennsylvania Railroad Company accomplished an enormous engineering feat, but destroyed a great architectural monument.
Clemente was an exceptional baseball player whose career sheds light on larger issues of immigration, civil rights and cultural change.
A year in the life of Wyoming cowboys and the ranching families of the American West.