It would be the "Biggest Thing on Earth," the salvation of the common man, a dam and irrigation project that would make the desert bloom, a source of cheap power that would boost an entire region of the country. Of the many public works projects of the New Deal, Grand Coulee Dam loomed largest in America's imagination during the darkest days of the Depression. It promised to fulfill President Franklin Roosevelt's vision for a "planned promised land" where hard-working farm families would finally be free from the drought and dislocation caused by the elements.
In the early 1830s, Texas, ruled by Mexico, held 20,000 U.S. settlers and 4,000 Mexican Tejanos, forcing residents to pick sides.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
Equipment failure, human error and bad luck led to the country's worst nuclear accident in 1979.
When two passenger ships collide off Nantucket in 1909, 1,500 people rely on 26-year-old Jack Binns to operate a new technology - wireless telegraphy - to save them all.
A personal story of one family's dramatic effort to hold onto their family farm in Iowa as massive foreclosures sweep the nation in the 1990s.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.