10 Days That Unexpectedly Changed America: Antietam
Directed by Michael Epstein, Narrated by Jeffrey Wright

Synopsis:
On September 17, 1862, at Antietam Creek, Maryland, over 23,000 Union and Confederate soldiers (nine times the number who fell on the beaches of Normandy) were killed or wounded, making it the bloodiest day of fighting in American history.  It was also arguably the most important battle of the Civil War.