Which battle marked the deadliest day of the American Civil War? Answer
The battle that holds the grim distinction as the single deadliest day of the American Civil War was the Battle of Antietam, also referred to as the Battle of Sharpsburg. This horrific clash took place on September 17, 1862, near Sharpsburg, Maryland, and resulted in a devastating 22,717 total casualties, including killed, wounded, and missing soldiers from both the Union and Confederate armies.
All of these massive losses were inflicted over the course of approximately twelve hours, making the battle the bloodiest single-day engagement in American history. Although other Civil War battles, such as Gettysburg, had a higher total number of casualties over their entire duration, the fighting at Antietam Creek remains unparalleled for the sheer concentration of death and destruction witnessed on one calendar day of the conflict.
Source:
https://www.youtube.com/watch?v=Xd_SCmGx3r4
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