Which battle made Aberham Lincoln say that he would slavery in the South if the war continued?

Battle of Antietam

Explanation:The Union's important victory at the Battle of Antietam gave Lincoln enough public support to issue the Emancipation Proclamation, which promised to free all slaves in the Confederacy. A month before the Civil War began in April 1861, Abraham Lincoln talked about slavery in his first speech as president.

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