Answer:The Battle of Antietam was one of the most important events of the American Civil War. ... The battle ended the Confederate invasion of Maryland in 1862 and resulted in a Union victory. It also led to President Abraham Lincoln issuing the Preliminary Emancipation Proclamation on September 22, 1862.
Step-by-step explanation:
The Battle of Antietam was one of the most important events of the American Civil War. ... The battle ended the Confederate invasion of Maryland in 1862 and resulted in a Union victory. It also led to President Abraham Lincoln issuing the Preliminary Emancipation Proclamation on September 22, 1862.