General Robert E. Lee's forces crossed the Potomac River into Maryland, leading to the Battle of Antietam. That battle, a Union victory, was among the bloodiest in American history; it facilitated Lincoln's Emancipation Proclamation in January.
During the American Civil War, President Abraham Lincoln issued the preliminary Emancipation Proclamation on September 22, 1862.
General Robert E. Lee's forces crossed the Potomac River into Maryland, leading to the Battle of Antietam. That battle, a Union victory, was among the bloodiest in American history; it facilitated Lincoln's Emancipation Proclamation in January.
During the American Civil War, President Abraham Lincoln issued the preliminary Emancipation Proclamation on September 22, 1862.
