Engineer James Eads tamed the mighty Mississippi, turning New Orleans into the second largest port in the nation.
During the defining months of the offensive against Germany, American forces faced a moral and strategic dilemma.
Brothers Wilbur and Orville Wright built a flying machine that made its first flight in Kitty Hawk, North Carolina in 1903.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
The story of the polio crusade pays tribute to a time when Americans banded together to conquer a terrible disease.
After notorious revolutionary leader Pancho Villa's raid on Columbus, New Mexico, General John Pershing and his 150,000 man cavalry set out to get Villa.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.