Today is the 159th Anniversary of the Battle of Antietam (Sharpsburg). On 17 September 1862 the Union Army of the Potomac met the Army of Northern Virginia in what remains to this day, the most fiercely fought battle in American history. General Lee positioned his army behind Antietam Creek near the town of Sharpsburg, MD. The battle is often thought of as three battles fought on the same day. The first was on in the vicinity of the Dunker Church and the Cornfield. The second fight was in the center of the battlefield in the vicinity of the Sunken Road (Bloody Lane). The third fight was in the vicinity of what is now known as Burnside's Bridge. The battle culminated with a fierce counter attack.
https://www.nps.gov/articles/a....-short-overview-of-t