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Rewrite the following article in a natural, human-like tone. Keep the meaning the same but improve clarity, structure, and readability. Do NOT mention any source, website, or external reference. Return clean HTML paragraphs:
Medieval Encrypted Letter Decoded
Sent by a Spanish diplomat. Apparently people have been working on it since it was rediscovered in 1860.
Posted on April 27, 2026 at 7:04 AM •
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Sidebar photo of Bruce Schneier by Joe MacInnis.

