Respuesta :

Abraham Lincoln used the Battle of Antietam as the opportunity to announce the Emancipation Procalmatio

Answer:

Battle of Antietam

Explanation:

The battle of Antietam was a battle that was fought during the American Civil War on September 17, 1862. This battle was part of the Maryland Campaign, and it is considered to have been the bloodiest day in United States history. The battle was tactically inconclusive. However, the Confederate troops retreated from the field first, and this made Lincoln optimistic about the outcome. This is the reason why he announced his Emancipation Proclamation.

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