(Commentary by Elizabeth R. Varon, Langbourne M. Williams professor of American history and author of “Armies of Deliverance: A New History of the Civil War”) On Saturday, Charlottesville will remove two equestrian statues of Robert E. Lee and Stonewall Jackson from the city’s public squares. That removal will not “erase history,” as the statues’ defenders have repeatedly charged. It will instead allow us a clearer view of the complex Southern past.