Index Librorum Prohibitorum

The Last Victim of the Spanish Inquisition

The Last Victim of the Spanish Inquisition

On July 26, 1826, Cayetano Ripoll, a schoolmaster in Valencia, Spain, teaching deist principles should become the last victim executed by the Spanish inquisition. Ripoll has the dubious honor of being the last of the many people known to have been executed under sentence from a Church authority for having committed the act of heresy. For almost 350 years the Spanish inquisition tried to secure the primacy of the Catholic Church in…
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The Art of Hiding Information – Johannes Trithemius’ Steganography

The Art of Hiding Information – Johannes Trithemius’ Steganography

On February 1, 1462, German Benedictine abbot and polymath Johannes Trithemius was born. Trithemius was active in the German Renaissance as a lexicographer, chronicler, cryptographer, and occultist. He had considerable influence on the development of early modern cryptography and modern occultism. However,  “Speak of things public to the public, but of things lofty and secret only to the loftiest and most private of your friends. Hay to the ox and sugar to…
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Index Librorum Prohibitorum – The List of Banned Books

Index Librorum Prohibitorum – The List of Banned Books

On June 14, 1966, the Roman Catholic Church abolished their famous list of banned books, the Index Librorum Prohibitorum or shorter simply, the Index, that had been installed almost 500 years ago. Actually, it was soon clear after the invention of the printing press that the written word could also be dangerous, especially if it can be published in large quantities. Once Johannes Gutenberg had presented the printing press including the printing process back in…
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