Section 1
Antietam and the Purpose of the War
In 1862, General Lee invaded the North, hoping a victory would convince Europe to help the South. He was stopped at the Battle of Antietam in Maryland, the bloodiest single day in American history.
Although it was a narrow military victory, Antietam had a massive political impact. It gave Lincoln the strength to issue the Emancipation Proclamation. This order declared that all enslaved people in rebel territory were free. It transformed the war from a battle to preserve the Union into a moral crusade to end slavery.