PBS
Pbs: New Perspectives on the West
This in-depth resource presents a history of the American West from pre-Columbian times until World War I with profiles, documents, and images. It encourages visitors to link these into patterns of historical meaning for themselves....
National Inventors Hall of Fame
National Inventors Hall of Fame: John Gibbon: Heart Lung Machine
This site provides a very brief bio on Dr. John Gibbon, inventor of the heart-lung machine that he used to "complete the first open-heart operation." Learn about the invention's impact on the medical world.