Battle of Antietam

The Battle of Antietam /ænˈtiːtəm/, also known as the Battle of Sharpsburg, particularly in the South, fought on September 17, 1862, near Sharpsburg, Maryland and Antietam Creek as part of the Maryland Campaign, was the first major battle in the American Civil War to take place on Union soil. It is the bloodiest single-day battle in American history, with a combined tally of 22,717 dead, wounded, or missing.