Antietam is often thought of as a one day battle, however the day before, on September 16th, there was also action in the East Woods. In post-war times, as Antietam became known as the "bloodiest single day in the war," the combat on the 16th was largely forgotten. Garry Adelman is joined by Bryan Cheeseboro of the National Archives and former park ranger and Co-Founder of the American Battlefield Trust Dennis Frye to discuss the beginning stages of the battle. This video is part of our commemoration series for the 158th Anniversary of the Battle of Antietam. I'll keep posting more as I find them as they upload them.