Map of the Battlefield of Antietam, Lieutenant William H. Willcox, c. 1862

Bloody Antietam

On September 17, 1862, the Confederate army under General Robert E. Lee invaded Maryland and clashed with General George B. McClellan’s Union forces near the village of Sharpsburg along the Antietam Creek. The brutal fighting resulted in a northern victory but exacted a terrible toll: 2,100 Yankee and 2,700 rebel soldiers were killed, and another 18,500 were wounded. Antietam remains the single bloodiest day in American history.