USA HISTORY

Detailed explanation-1: -General Lee’s first incursion into Northern territory ended with heavy Union and Confederate losses along Antietam Creek near Sharpsburg, Maryland, on September 17, 1862, when more than 23, 000 men were killed, wounded, or missing in action in this, the bloodiest one-day battle of the Civil War.

Detailed explanation-2: -The bloodiest single day in the history of the United States military was June 6, 1944, with 2, 500 soldiers killed during the Invasion of Normandy on D-Day. The second-highest single-day toll was the Battle of Antietam with 2, 108 dead.

Detailed explanation-3: -The Battle of Antietam remains the bloodiest single day in American history. The battle left 23, 000 men killed or wounded in the fields, woods and dirt roads, and it changed the course of the Civil War.

Detailed explanation-4: -Why was Antietam so deadly? Advanced technology, unwise tactics, and terrible decision-making. The combination of new rifles that could be shot with great accuracy from far away and old-fashioned battle lines led to unprecedented deaths in the Battle of Antietam (and in the Civil War in general).