spawned mentions of the fake god on numerous other websites as well as in a book titled Atheism and the Case Against Christ. In August 2019, a discredited theory was removed from the article Warsaw concentration camp, over 10 years after it was debunked in mainstream scholarly literature. The article was first drafted in August 2004 by an established editor who presented as fact a fringe theory that the camp contained gas chambers in which 200,000 non-Jews perished. With the misinformation presented as fact for 15 years, media sources dubbed it as "Wikipedia's longest-standing hoax". In June 2022, it was discovered that an editor known as Zhemao () had created over 200 articles on the Chinese Wikipedia about fabricated events in medieval Russian history. Dubbed the Zhemao hoaxes, the hoax articles combined research and fantasy, creating an alternate history centered around a "Kashin silver mine" and political ties between "princes of Tver" and "dukes of Moscow". In August 2022, Wikipedia criticism site Wikipediocracy published an interview with a hoaxer who ten years prior had added a hoax to Wikipedia, claiming that an "Alan MacMasters" had invented the electric toaster. The false information was widely reproduced online as well as in newspapers and books subsequently cited in Wikipedia. In 2023, Jan Grabowski and Shira Klein published an article in the Journal of Holocaust Research in which they claim to have discovered a "systematic, intentional distortion of Holocaust history" on the English-language Wikipedia. Analysing 25 Wikipedia articles and almost 300 back pages (including talk pages, noticeboards and arbitration cases) Grabowski and Klein believe they have shown how a small group of editors managed to impose a fringe narrative on Polish-Jewish relations, informed by Polish nationalist propaganda and far removed from evidence-driven historical research. In addition to the article on the Warsaw concentration camp, the authors claim that the activities of the editors' group had an effect on several articles, such as History of the Jews in Poland, Rescue of Jews by Poles during the Holocaust and Jew with a coin. Nationalist editing on these and other articles allegedly included content ranging "from minor errors to subtle manipulations and outright lies", examples of which the authors offer. Conflict-of-interest editing on Wikipedia Political interests and advocacy While Wikipedia policy requires articles to have a neutral point of view, there have been attempts to place a spin on articles. In January 2006 several staffers of