*[[Diana, Princess of Wales]] was murdered by the British security service [[MI5]] at the [[Duke of Edinburgh]]'s orders to prevent her giving birth to a [[Islam]]ic child by Dodi Fayed.
*The [[CIA]] or Russian operatives are using [[Wikipedia]], Conservapedia, [[YouTube]], and social media in a government-controlled disinformation campaign targeting the American public.
*The notion that Russia hacked or rigged the 2016 Presidential election to help Donald Trump win.<ref>Murdock, Deroy (March 29, 2019). [https://www.nationalreview.com/2019/03/collusion-clingers-and-their-flat-earth-forebears/ Collusion Clingers and Their Flat-Earth Forebears]. ''National Review''. Retrieved March 30, 2019.</ref><ref>[https://video.foxnews.com/v/6020444417001/?playlist_id=5198073478001#sp=show-clips Tucker: Brennan and Comey disgraced themselves]. ''Fox News Video''. March 29, 2019. Retrieved March 30, 2019.</ref>
*Various theories that the world would end on [[Mayan 2012 prediction|December 21, 2012]] associated with the Mayan calendar.