insider.si.edu

History of cryptography and cryptanalysis codes, ciphers, and their algorithms John F. Dooley

Introduction: A revolutionary cipher -- Cryptology before 1500: a bit of magic -- The black chambers: 1500-1776 -- Crypto goes to war: the American Revolution -- Crypto goes to war: the American Civil ...
The New York Times

Present Time

David Kwong, the magician, branches out with a festive Sunday puzzle. By Caitlin Lovinger Jump to: Tricky Clues | Today’s Theme SUNDAY PUZZLE — Will Shortz, in his print introduction to this grid, ...