Communist propaganda in the Soviet Union was extensively based on the Marxism-Leninism ideology to promote the Communist Party line. In societies with pervasive censorship, the propaganda was omnipresent and very efficient. It penetrated even social and natural sciences giving rise to various pseudo-scientific theories like Lysenkoism, whereas fields of real knowledge, as genetics, cybernetics, and comparative linguistics were condemned and forbidden as “bourgeois pseudoscience”. With “truths repressed, falsehoods in every field were incessantly rubbed in print, at endless meetings, in school, in mass demonstrations, on the radio”.[1]