Late on the afternoon of September 17th, after a day now known known as the single bloodiest day of fighting in the American Civil War, it appeared that George McClellan's Union forces would win the day, the late arrival of Confederate General A.P. Hill's Light Division changed the course of the Battle of Antietam. Union General Ambrose Burnside's men had forced their way across a narrow stone bridge spanning Antietam Creek, just south of Sharpsburg, Maryland, and were threatning to turn the left flank of Robert E. Lee's Army of Northern Virginia, when A.P. Hill's division, which had been left behind at Harper's Ferry to secure a Federal armory and its thousands of newly manufactured rifles, appeared on the roadway at image left. Hill deployed his division along this ridgeline and slammed into Burnside's charging corps. driving them back, thereby preventing the destruction of Lee's Confederate army.
Hill'sApproach1A.P. HillAmbrose BurnsideAntietamAntietam CreekAntietam National BattlefieldBattle of AntietamBurnside's BridgeC.S. ArmyCivil WarFederal U.S.ArmyGeorge McClellanHarper's FerryMarylandRobert. E. LeeSharpsburgapproachbarttlefieldbattlebattlesconfederatefightfightingjaigieesejon stephensonrebelrebelssoldiersunionwar between the statesJon G. Stephenson, from