Ever seen the movie Gettysburg? Or read The Killer Angels? Today was the last day of the Battle, the day of Pickett's Charge, as bloody a mess as ever happened.
Between 46,000 and 51,000 Americans were casualties of the three-day battle. Union casualties list 23,055 (3,155 killed, 14,531 wounded, 5,369 captured or missing), while Confederate casualties are estimated 23,231 (4,708 killed, 12,693 wounded, 5,830 captured or missing).
It's sunny and hot there today; unlike 1863 it's supposed to be the same tomorrow. Then, they were gathering dead and wounded in the rain.
I can't really think of anything profound to say. I guess the word at Ace is the proper one: Remember.