Answer:
The bloodiest day of combat in US history the battle of Antietam ended in a tactical draw, albeit with a strategic victory for the Union, by thwarting the Confederacy's invasion of the north. The Emancipation Proclamation transformed the American civil war into a crusade for human rights.
Step-by-step explanation:
Also known as the Battle of Sharpsburg. It is recognized as the first major confrontation in the American Civil War. It occurred in the vicinity of Sharpsburg, Maryland, United States of America, on September 17, 1862, specifically in the vicinity of the Antietam stream. The casualties, between dead and wounded, amounted to 23,000. The Battle of Antietam is considered a tactical victory for the Union, as it ended Lee's strategic campaign and allowed President Lincoln to issue the Emancipation Proclamation on September 22, taking effect on January 1, 1863.