Question
What battle was the bloodiest day of the Civil War?
Battle of Appomattox
Battle of Gettysburg
Battle of Bull Run
Battle of Antietam
Battle of Appomattox
Battle of Gettysburg
Battle of Bull Run
Battle of Antietam
Answers
GPT-4o mini
The bloodiest day of the Civil War was the **Battle of Antietam**, which took place on September 17, 1862. It resulted in the highest number of casualties in a single day in American military history.