The goal is to whitewash history, to only glorify the crimes of white European settler colonialists. The exhibit, on Trump’s targeted list, focuses on the contradictory coexistence of liberty for propertied white men and enslavement for Africans. Protests against the attempted erasure of history have been held at Harper’s Ferry, including one on Sept. 19. At Chickamauga and Chattanooga National Military Park in Georgia, an exhibit on the “Causes of the Civil War” is under review. At the Great Smoky Mountains National Park, a panel referring to the “harsh circumstance of enslavement” is the target.