In the early 20th century dangerous and often poisonous chemicals were included in many common household products. Browse these pictures of medicines, liniments, moonshine and a cyanide furnace.
Corresponding educational resources for this photo gallery can be found on PBS LearningMedia.
At the height of segregation, an unlikely alliance between a black medical genius and a white surgeon led to a pioneering medical breakthrough.
The evolution of rhythm and blues through the careers of singers Ruth Brown and Charles Brown, with contemporary performances by both.
Postwar New York City and the global economic order told through the story of the World Trade Center.
They were the first to brave the unknown.
The remarkable story of how a railroad was built connecting California to the East.
A look at five real-life "Rosies," the reality of working in defense plants during World War II and then having to give up those jobs for returning GIs.
The dramatic story of the streamliners is one of remarkable achievements and opportunities lost.
The story of the American civil rights movement is told through its powerful music -- the freedom songs that protesters sang on picket lines, in mass meetings, in police wagons, and in jail cells as they fought for justice and equality.