Battle of Antietam Fought in Maryland
By mid-1862, Confederate General Robert E. Lee launched his first invasion of the North during the American Civil War, hoping to gain European recognition and supplies. Union forces under George B. McClellan pursued and intercepted Lee's divided army near Sharpsburg. Fighting erupted at dawn on September 17 along Antietam Creek in a series of brutal assaults across cornfields, woods, and a sunken road. Over twelve hours, Union and Confederate troops clashed in the bloodiest single day in American military history, with more than 22,000 casualties. Lee withdrew across the Potomac, ending the immediate threat to Northern soil. President Lincoln used the tactical Union victory to issue the Emancipation Proclamation.
