of KL Warschau. It became a place of informal monthly gatherings of supporters of Trzcińska's hypothesis. Despite the fact that relevant authorities consider the monument an illegal building and do not cover it by protection afforded to other monuments as it cites false historical data, the monument still stands. The resolution that initially allowed the monument's construction was cancelled in October 2009 after consultations with the Council for the Protection of Struggle and Martyrdom Sites, a governmental body responsible for the preservation of sites of wartime persecution, and it was decided to place a new monument in the neighbourhood of Muranów, on the site of what was then Serbia prison, some away from the walls of the actual concentration camp. That decision was opposed by supporters of Trzcińska's hypothesis, who argued that placing the monument there would suggest that only Jews were victims of the concentration camp, but the Supreme Administrative Court denied their request to invalidate the new resolution. Supporters of the extermination camp theory have created their own commemoration sites. Their efforts have resulted in the 2004 monument, a plaque on a nearby on , placed in 2009 and consecrated by Archbishop Kazimierz Nycz, and another two in 2017, one on a in the Warsaw district of Praga-Południe and its copy in the Jasna Góra Monastery in Częstochowa; all of these are repeating Trzcińska's conjecture about 200,000 Poles murdered in the Warsaw concentration camp. An unofficial plaque was also installed in the Lasek na Kole forest, contending that a place of execution connected with the Warsaw concentration camp existed there. Marius Gudonis and Benjamin T. Jones, in their book History in a Post-Truth World, relate the fact such plaques appeared to the indifference to established facts and to an ideological devotion to the preferred historical narrative, which, in the case of the 2009 plaque, was further cemented by the approval of high church authorities. As a result, the only place of commemoration of the Warsaw concentration camp in the area of KL Warschau is a plaque that was initially embedded into a wall of a building at 34 Anielewicza Street in 1994; it was moved in 2018 and is now located on the corner of Anielewicza and Okopowa Streets, which was the south-west corner of KL Warschau. The plaques, written in Polish, Hebrew and English tell about the camp's liberation by Battalion Zośka and the subsequent participation of