Proclamation For the Encouragement of Piety and Virtue

King George III's Royal Proclamation For the Encouragement of Piety and Virtue, and for the Preventing and Punishing of Vice, Profaneness and Immorality exhorted the British public against sexually explicit material. It called for the suppression of all "loose and licentious Prints, Books, and Publications, dispersing Poison to the minds of the Young and Unwary and to Punish the Publishers and Vendors thereof".

Source: Wikipedia — Proclamation For the Encouragement of Piety and Virtue (CC BY-SA 4.0)