Cryptolects and the art of concealment

When languages divide before they connect

Printed in 1563, On the Secret Symbols of Letters by the Italian polymath Giambattista della Porta was one of the most popular books on cryptography at the time. Illustrated here from an edition printed in 1591, now in Washington DC, Folger Shakespeare Library.

Following from the last post about Trojan Horses and deception in warfare, I wish to refocus o…