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David Kahn, whose 1967 book, “The Codebreakers,” established him as the world’s pre-eminent authority on cryptology — the science of making and breaking secret codes — died on Jan. 24 in the Bronx.

He was at a cryptology conference a few years ago, when he saw a presentation about Elizebeth Friedman.

Early exclaims in character, referencing the field of cryptology Swift has created over the years.

The museum sticks to its mission of explaining cryptology to a broad section of the public.

In our own time, Renaissance scholarship helped inspire World War II code breaking, while military cryptology techniques were in turn adapted as tools of literary analysis.