"Правые" историки зачастую пишут так, как будто девятнадцатого века вовсе не было; "левые" - как будто не было двадцатого.
Historians from the right can sometimes write as though the nineteenth century did not take place; historians from the left can often write as though the twentieth century never happened.
http://www.newyorker.com/magazine/2014/12/22/fires-paris