mandelbug definition: Noun (plural mandelbugs) 1. (computing) A software bug whose behaviour appears to be chaotic. ...
The bloodiest single day of battle was Antietam (26,134 casualties). The bloodiest battle, however - which lasted three days - was Gettysburg (51,112 casualties). July 21, 1861.
It was told that the Antietam battle was the most bloodiest battle in military history. The Battle of Antietam, or Sharpsburg was fought September 17, 1862. The Battle of Antietam happened on September 17, 1862. It was one of the first Civil War battles to occur in the north-and also one of the deadliest. Nearly 23,000 people were killed, the highest death-toll for any single-day battle in U.S. history.