Gettysburg, Pennsylvania. Lee orders the Army of Northern Virginia to begin retreating from Gettysburg; by July 14, they will all be south of the Potomac. The Union lost 23,049 men (3,155 killed, 14,529 wounded, and 5,365 taken prisoner), while the Confederates lost 29,000 (4,000 killed, 18,735 wounded, and 5,425 taken prisoner).
