What was the bloodiest single day of civil war was?

ANSWER:

apex= The Battle of Antietam

The bloodiest battle of the American Civil War, was the Battle of Shiloh (also known as Pittsburg Landing).

The Battle of Shiloh, named after a church on the battlefield, is where many men from both sides would meet their God.

After the battle was over, neither side cared anything about the title of winner or loser. After Shiloh, the South never smiled.