Scientists have deciphered a 17th-century letter written by a devil-possessed nun

For many years, scientists have been trying to decipher the message left by Sister Maria Crocifissa della Concesione. 340 years later, in 2018, scientists from Sicily succeeded. What they read amazed everyone.

On August 11, 1676, a mysterious letter was written by a girl whose name "in the world" was Isabella Tommasi. She was only 15 years old when she entered a convent in Palma di Montequiaro. After taking the veil, she took the name Maria Crocifissa della Concezione (Maria Crocifissa della Concezione) — literally "crucified Mary".

One morning she woke up and saw that her hands were covered in ink, and in front of her was a sheet of paper on which incomprehensible characters were written. She didn't know what it said. The cipher consisted of letters of the Greek and Latin alphabets, as well as Cyrillic and even runic elements.

Maria told other nuns that the devil himself, "the enemy of the human race," had possessed her, and wrote this message with her hand. The nuns believed her and left the letter at the monastery in the hope that someone would be able to decipher it.

340 years later, a group of Italian programmers from a research center in Catania was able to decipher the letter. The scientists used a decryption program found on the darknet. They managed to read part of the devil's message. 

Sister Maria knew several languages, and scientists believe that she invented her own, based on their synthesis.

From the decoded part of the message, it follows that God, Jesus and the Holy Spirit are "useless, superfluous cargo", and "God believes that He can free mortals." It was also written in the message that God was invented by man. Scientists say that writing is incoherent, inconsistent and not always clear. They question the obsession of Sister Maria, who, in their opinion, suffered from schizophrenia or bipolar disorder.

The Monastery of Palma di Montechiaro