In the mid-1700s, Denis Diderot published his Encyclopédie in France, collecting the work of more than 140 authors to summarize the Enlightenment. It quickly landed on the Catholic Church’s banned books list for including contrarian thoughts, and, at one point, his publisher some content without Diderot’s knowledge. Around the same time, King George III censored the first edition of Encyclopaedia Britannica, requiring the removal of some anatomically correct drawings in an article about midwifery.