"We didn't have the very complete understanding of what that risk was. But what impressed me was that there were black Mississippians who did know, who did know how dangerous it was." Watch "Freedom Summer" premiering June 24, 2014 on American Experience PBS.
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.
In the decade after the Civil War, former slaves sing their way into a nation's heart with spirituals, the religious anthems of slavery.
Between 1890 and 1920, 12 million people emigrated from Europe arriving in New York Harbor and Ellis Island.
Explore how Orson Welles' genius use of the new medium of radio struck fear into an already anxious nation.
The influential musical pioneers from Appalachia whose recordings lifted spirits during the Great Depression.
A civil rights leader in Harlem before entering politics, Powell was one of the most charismatic black leaders of the 20th century.
Prohibition's effect on Detroit, Michigan, the first major American city to "go dry," and the growth of the liquor smuggling industry.