Battle Of Antietam Summary: The Battle of Antietam, a.k.a. Battle of Sharpsburg, resulted in not only the bloodiest day of the American Civil War, but the bloodiest single day in all of American history. Fought primarily on September 17, 1862, between the town of Sharpsburg, Maryland, and Antietam Creek, it ended Gen. Robert E. Lee’s first invasion of a northern state.
Battle Of Antietam Facts
Sharpsburg, Washington County, Maryland
September 17, 1862
Union: Major General George B. McClellan
Confederate: General Robert E. Lee