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.
Beginning early on the morning of this day in 1862, Confederate and Union troops in the Civil War clash near Marylandâs Antietam Creek in the bloodiest one-day battle in American history.