Yhn WorldReligion first seen 12 h ago, last 1 h ago, peak #2

Napoleonic war briefing decoded after 217 years unread

Original: Breaking the Cipher of the Napoleonic war briefing, unread for 217 years

A researcher has broken the code of an encrypted Napoleonic-era military letter addressed to Marshal Auguste de Marmont, which had gone unread for 217 years. The write-up walks through how the cipher was cracked and what the decrypted briefing reveals about wartime communications of the period, drawing interest from history and cryptography enthusiasts alike.

Why now: Deciphering a long-unread Napoleonic coded letter is a rare mix of historical discovery and codebreaking achievement

Auguste de MarmontNapoleon BonaparteNapoleonic Wars

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• Breaking the Cipher of the Napoleonic war briefing, unread for 217 years · theanonymousone · 15

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