Taking place near Sharpsburg, Maryland on Sept 17, 1862, it was also the first battle to occur on northern soil. During the battle, 38,000 Confederate troops led by General Robert E. Lee, clashed with 75,000 Union troops led by General George B. McClellan.
Surprisingly, eight women fought as soldiers in the battle and one child won the Medal of Honor for his actions during the battle.
The battle occurred after General McClellan followed General Lee into Maryland during Lee’s ambitious plan to invade the north and launched attacks against his troop’s left flank near Antietam creek on the morning of September 17.
The Confederates counterattacked and the battle spilled onto Miller’s cornfield near Dunker Church and into the East Woods, West Woods and the Sunken road.
By the afternoon, Union troops captured a stone bridge over Antietam Creek and charged the Confederate’s right flank.
Confederate reinforcements, fresh from the Battle of Harper’s Ferry, arrived just in time to counterattack and drove back the Union soldiers, ending the battle.
By the end of the 12 hour battle, 2,108 Union soldiers and 1,546 Confederate soldiers lay dead and tens of thousands were missing.
The battle successfully thwarted General Lee’s attempts to push north and was considered a strategic win for the Union army.
Many of the wounded were carried to one of the 70 field hospitals established in barns and churches near the battlefield.
Civil War nurse Clara Barton brought much needed supplies to the battlefield and field hospitals and tended to the wounded soldiers. She later described her experiences that day in a letter to a friend:
“A man lying upon the ground asked for drink–I stooped to give it, and having raised him with my right hand, was holding the cup to his lips with my left, when I felt a sudden twitch of the loose sleeve of my dress–the poor fellow sprang from my hands and fell back quivering in the agonies of death–a ball had passed between my body–and the right arm which supported him–cutting through the sleeve, and passing through his chest from shoulder to shoulder. There was no more to be done for him and I left him to rest.”
Most of the dead were buried in shallow graves on the battlefield. According to the book Battle of Antietam: The Bloodiest Day, soil erosion and digging by wild hogs exposed many of the shallow graves on the battlefield in the years after the war and the animals were sometimes seen eating the human remains.
The Antietam National Cemetery was finally established in 1867, but only Union soldiers were allowed to be buried in it. The Confederate soldiers were eventually relocated to the Washington Confederate Cemetery in Hagerstown in 1870.
If you want to read more about Antietam, check out this article about the best books about Antietam.
PBS: The Battle of Antietam: www.pbs.org/civilwar/classroom/lesson_antietam.html
National Parks Service: Battle of Antietam: www.nps.gov/anti/historyculture/upload/Battle%20history.pdf
National Parks Service: Eyewitness to the Battle, Part 2: www.nps.gov/anti/historyculture/eyewitness-to-battle-part-2.htm
Battle of Antietam: The Bloodiest Day; Charles Alexander, Ted Alexander; 2011
West Maryland’s Historical Library: History of Antietam National Cemetery: www.whilbr.org/antietamNationalCemetery/index.aspx