where was the bloodiest single day in the civil war

3 answers

The bloodiest single day in the American Civil War was the Battle of Antietam, which took place on September 17, 1862. The battle occurred near Sharpsburg, Maryland and resulted in an estimated 22,717 casualties, including around 3,650 killed.
Is it bull run or is it vicksburg or is it shiloh or is it antietam
Apologies for any confusion caused. The bloodiest single day in the American Civil War was indeed the Battle of Antietam, fought on September 17, 1862. However, there were other significant and bloody battles during the Civil War. The First Battle of Bull Run (First Manassas) in July 1861, the Battle of Shiloh in April 1862, and the Siege of Vicksburg in May-July 1863 were also major engagements with high casualty numbers. But in terms of the bloodiest single day, Antietam holds that distinction.