09-01-2022, 11:55 AM
(08-01-2022, 07:43 PM)pfeaster wrote: You are not allowed to view links. Register or Login to view.I can see wanting to disregard sources from after ~1438, particularly when they involve developments that seem to have been considered innovative at the time (like the Alberti Wheel). But I wonder how far before ~1404 it's worthwhile to look.
In practice I tend to be interested in ciphers from the years 1379 to 1449.
1379 is the year of the cipher ledger of Gabriel de Lavinde of Parma on behalf of Antipope Benedict XIII which is held in the Vatican Archives. Ciphers from before 1379 might have some small interest to me, but I think probably have very limited value for Voynich research.
I have limited interest in finding ciphers from 1450 onwards. 1450 is the year in which Francesco Sforza became Duke of Milan and the period from which the Tranchedino cipher ledger dates. This is certainly of interest as background, however there is a wealth of material which survives from the 2nd half of the 15th century, so any new examples unless very unusual are unlikely to interest me when it comes to my Voynich research.