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The winner of the Battle of Antietam was deemed inconclusive, although a tactical victory was claimed by the Union army and gave President Abraham Lincoln the backing he needed to deliver the Emancipation Proclamation. The Battle of Antietam was fought on September 17, 1862, in Sharpsburg, Maryland, and was the first battle to be fought in the North. As of 2014, the battle remains the bloodiest single day in American history.