In the early 1830s, Texas, ruled by Mexico, held 20,000 U.S. settlers and 4,000 Mexican Tejanos, forcing residents to pick sides.
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
A gripping tale of medical intervention gone awry, and one of the most barbaric mistakes of modern medicine.
From the Revolutionary War to Operation Desert Storm - newly discovered letters read by celebrity actors tell of courage, longing, and sacrifice.
In 1960, Francis Gary Powers' U-2 spy plane was shot down over the Soviet Union.
The Alaskan Highway stands today as one of the boldest homeland security initiatives ever undertaken.
Winner, 2010 Peabody Award --- The 1968 My Lai massacre, its subsequent cover-up, and the soldiers who broke ranks to bring the atrocity to light.
The first officially formed regiment of northern black soldiers who fought in the Civil War.