14h 5min, sep 17, 1862 y - Battle of antietam
Description:
over 23,000 casualties fell in the 1 day battle, stating this as the bloodiest. The Union victory at Antietam resulted in President Abraham Lincoln issuing his Preliminary Emancipation Proclamation 5 days later.
Added to timeline:
Date:
14h 5min, sep 17, 1862 y
Now
~ 163 years ago