Hallowed Ground: A Walk at Gettysburg

James M. McPherson, the Pulitzer Prize–winning author of Battle Cry of Freedom, and arguably the finest Civil War historian in the world, walks us through the site of the bloodiest and perhaps most consequential battle ever fought by Americans: the Battle of Gettysburg.

The events that occurred at Gettysburg are etched into our collective memory, as they served to change the course of the Civil War and with it the course of history. More than any other place in the United States, Gettysburg...