1559: The Index of Forbidden Books

Index Librorum Prohibitorum, Venice, 1564 (Public Domain)


Paul IV issues the first papal Index of Forbidden Books in 1559. It bans the entire writings of 550 authors, including Erasmus, Machiavelli and Rabelais. To enforce the censorship, inquisitors scan manuscripts, erase passages with ink and cut out pages. Prohibited books are collected and burnt. The index is not formally abolished before 1966.