Title: Al-Khalil ibn Ahmad

Abu ‘Abd ar-Raḥmān al-Khalīl ibn Aḥmad ibn ‘Amr ibn Tammām al-Farāhīdī al-Azdī al-Yaḥmadī (Arab: أبو عبدالرحمن الخليل بن أحمد الفراهيدي‎; 718 – 786 CE), more commonly known as Al-Farahidi or simply Al-Khalīl, was one of the earliest Arab lexicographers and philologists. Continue reading

Cryptanalysis Treatise Written in Arabic

Cryptanalysis treatise Kitab al-mu'amma (Book of Secret Language), was written by Al-Khalil ibn Ahmad, Arabic philologist circa 750 in Basra, Iraq and author of the first Arabic dictionary. Continue reading

Leon Battista Alberti

Leon Battista Alberti (Italian: [leˈom batˈtista alˈbɛrti]; February 18, 1404 – April 25, 1472) was an Italian humanist author, artist, architect, poet, priest, linguist, philosopher and cryptographer; he epitomised the Renaissance Man. Continue reading

Cipher wheel was invented circa 1466

The Italian scholar and artist Leon Battista Alberti, famed as the first Renaissance man, invented the Cipher wheel, circa 1466. Continue reading