Why not just rip out the pages from history books, 1861-1865. Refer to those years as THE YEARS THAT SHALL NOT BE MENTIONED.
The while ISIS is destroying the ancient monuments of the Middle East, WE can be destroying all evidence of those years 1861-1865.
It isn’t just 1861-5 that they want torn from history books. To the Left, the only American history worth talking about started with 60’s radicalism and 90’s political correctness. To hear their version of the story, Americans were just cave men with no history until radical agitators taught us about the glories of multiculturalism, feminism, and political correctness.