Task: Text Categorization
Input (English): Near the end of this battle, Burnside crossed his namesake lower bridge to threaten to cut off retreat, but was repulsed by A.P. Hill's forces. During this battle, D.H. Hill defended a sunken road that became known as the ""Bloody Lane. "" General McClellan failed to seize the chance to pursue Lee, but Lincoln still counted it as the victory necessary to issue the Emancipation Proclamation. For 10 points, name this 1862 Civil War battle that was the bloodiest day of battle on American soil.
Output (English): History