23,000 soldiers were killed, wounded or missing after twelve hours of savage combat on September 17, 1862. The Battle of Antietam ended the Confederate Army of Northern Virginia's first invasion into the North and led to Abraham Lincoln's issuance of the preliminary Emancipation Proclamation.
The Bloodiest One Day Battle in American History
National Cemetery 150th Anniversary
This year we commemorate the 150th Anniversary of the Antietam National Cemetery with a variety of special programs.
Last updated: August 23, 2017