Cipher Mysteries

I'm just collecting my thoughts after an exhilarating lecture by William Kiesel (the publisher and editor of Ouroboros Press) on magic circles at Treadwell's in Covent Garden (Christina's post-lecture blog entry is here). William presented a long series of images of magic circles (manuscripts diagrams, woodcuts, paintings, etc) from the Middle Ages right through to the 19th ...

One very early cipher involved replacing the vowels with dots. In his "Codes and Ciphers" (1939/1949) p.15, Alexander d'Agapeyeff asserts that this was a "Benedictine tradition", in that the Benedictine order of monks (of which Trithemius was later an Abbot) had long used it as a cipher. The first direct mention we have of it was in a ninth century ...