Video from the September 15-16, 2012 weekend for the 150th Anniversary of the Battle of Antietam, Maryland (September 17, 1862). This reenactment was for the "Antietam-Sharpsburg" event. The 51st Pennsylvania Volunteer Infantry Regiment and the 51st New York Volunteer Infantry Regiment take the lower bridge over Antietam Creek (now known as the Burnside Bridge).