Not long ago, Yi Zhongtian's books were taken off the shelves of the education sections of certain provinces,
followed by notices received by Xinhua bookstores across the country that Yi's books were to be taken off the shelves. Why should a scholar of ancient history have his books taken off the shelves?
People from the publishing world say two reasons, first, vulgarity. Second, suspected historical nihilism.

What does historical nihilism mean? Why is the Chinese Communist Party so afraid of historical nihilism? What exactly does historical nihilism falsify?