... when the brigades on Hill's right moved up the Emmitsburg road, fell upon Sickles' right and drove it in retreat toward Cemetery ridge. By 7, Meade's left was completely driven back in defeat, and Longstreet 's men were pressing forward to a new position at the base of the two little mountains. Three of Hill's brigades were at the same time advancing against Meade's center, but these failed to support, ...