September 17th, 1862, the Army of The Confederacy has taken the civil war to the northern states by invading Maryland. The battle at Antietam Creek near Sharpsburg, Maryland remains, to this day, the bloodiest single day battle in US history with an estimated 22,717 soldiers dead, wounded or missing, all in a matter of a few hours. That is more dead in one day than in all of the Revolutionary War, War of 1812 and the US/Mexican war… combined.