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.
With a total of 51,000 casualties, the Battle of Gettysburg is bloodiest battle in American history. In an area of 25 square miles, the battle was fought with 172,000 men and 634 cannon.