He was a man with a camera and a vision, a pioneer of photography who produced a visual record of the Civil War that is now a national treasure.       

Trains...both sides needed them, but it was the Union who had the know-how and equipment to make use of this invaluable tool.                          

The story of one of the Union's most famous units. Mustered in the Midwest, they served with enormous distinction while suffering heavy losses.        

In March 1862, the North's Monitor and the South's CSS Virginia clashed in an inclusive battle. But the ironclads changed naval warfare forever, their armor plating dooming wooden warships to the scrap heap.

After the most savage day of fighting America has ever seen, an astonishing 22,000 Union and Confederate soldiers lay dead upon a Maryland battlefield.

The story of the bloody battle that killed or wounded over 10,000 men and ended in devastating defeat for the North. A bumbling military bureaucracy undermined Union General Ambrose Burnside's strategy, leaving his troops exposed.

The story of the horrific fight for the strategically vital Mississippi city. Under heavy bombardment, the streets flowed with blood as civilians fled to shelters and caves.

The story of the spectacular defeat of the Army of Tennessee in the fall of 1864. Union soldiers held off 18 charging brigades at Franklin, then destroyed the Confederate forces on December 16 as large numbers of civilian spectators looked on.