The Civil War Battle of Antietam
On Sept. 17, 1862, in the bloodiest single day of the Civil War, an estimated 22,700 men died or were wounded.
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Sept. 17, 1862
This photo shows an engraving sketch depicting Union troops charging across the Burnside Bridge over Antietam Creek during the Battle of Antietam near Sharpsburg, Md., on Sept. 17, 1862.
Credit: AP Photo
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