index librorum prohibitorum

Though with the twentieth and last printed edition published in 1948 and Pope Paul’s December 1965 Motu Proprio (see also) reorganising the curia failing to renew or reinstate it as a part of canon law, an official notitiæ from the Congregation for the Doctrine of the Faith effectively abolished the Catholic Church’s list of prohibited books. In circulation and updated since 1571, the Church realised that their censorship and denunciations often carried the opposite effect than the one intended and chose instead to emphasise the moral and persuasive force of the banned books index rather than focus on punitive controls. Among those authors blacklisted include Voltaire, Jean-Jacques Rousseau, Baruch Spinoza, Immanuel Kant, Francis Bacon, Nicolaus Copernicus, Galileo Galilei, Blaise Pascal and John Milton.