Legality of Cannabis by U.S. Jurisdiction Part of a series onDenial of mass killings Instances of denial Denial of atrocities against Indigenous peoples Armenian genocide Holodomor Romani genocide The Holocaust trivialization inversion Congo Free State Nanjing Massacre Genocide of Serbs in the Independent State of Croatia Indonesian mass killings Bangladesh genocide Cambodian genocide Tiananmen Square massacre Katyn massacre Khojaly massacre Rwandan genocide Bosnian genocide Rohingya genocide Scholarly controversy over mass killings Holodomor Joseph Stalin Colonization of Australia Mao Zedong Mongol conquest Native American population decline 1944–1950 expulsion of Germans Related topics Genocide justification Historical negationism Historical revisionism