Antietam National Battlefield
Park History
NPSHistory.comAntietam National Battlefield in Sharpsburg, Maryland, preserves the site of the Battle of Antietam, fought on September 17, 1862 — the bloodiest single day in American military history, with an estimated 23,000 casualties. The Union's strategic victory gave President Abraham Lincoln the political leverage to issue the preliminary Emancipation Proclamation five days later, fundamentally shifting the war's purpose to include the abolition of slavery. Established as a national battlefield site in 1890, the park encompasses approximately 3,230 acres of rolling farmland and includes landmarks such as Burnside Bridge, the Dunker Church, and Bloody Lane.
FLAGGED FOR REVIEW: Interpretive materials
On September 17, 1862, Union and Confederate forces collided near Sharpsburg, Maryland, in the single bloodiest day in American history, with 23,000 casualties in 12 hours of savage fighting.
Battle of Antietam resulted in over 22,726 dead, wounded, or missing—more than any other single day of combat in U.S. history. Union's tactical performance at Antietam gave President Lincoln the 'victory' he needed to issue the preliminary Emancipation Proclamation. One of the first five Civil War battlefields to receive federal protection, designated in 1890.
Among the waysides submitted: “History or Memory,” which the park lists under “Lost Cause narrative,” and several on armies “causing destruction to civilian property.” [NPS review record]
Why this matters: Antietam marks the turning point where military victory transformed into a moral reckoning—the bloodiest day that ultimately changed the war's purpose. Over 750,000 people visit this site each year.
House Was Burning: armies causing destruction to civilian property.
Witness to History: natural resource (historic Burnside Sycamore) with no beauty and grandeur reference.
Pry Family Upheaval: Union army causing destruction to civilian property.
ANB Wayside at Newcomer: armies causing destruction to civilian property.
History or Memory: Lost Cause narrative
Photographs attached to this park's records in the leaked NPS review database.
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