Battle of Antietam From Wikipedia, the free encyclopedia Jump to: navigation, search "Antietam" redirects here. For other uses, see Antietam (disambiguation). Battle of Antietam Part of the American Civil War The Battle of Antietam, by Kurz & Allison, depicting the scene of action at Burnside's Bridge Date September 17, 1862 (1862-09-17) Location Washington County, near Sharpsb..