Open Problems in History
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Cryptographers

codes and ciphers

Some historical documents were written to be unreadable. Cryptographers can identify the system behind a code or cipher and test proposed solutions against the surviving text.

1 problem needs cryptographers

  1. 01
    What do James Wilkinson's unread coded dispatches to Spanish officials say?

    Test English dictionary editions printed between about 1760 and 1800 against the known page, column and row anchors, holding back known code-word pairs to validate any match.

    Texts & authorship · Americas · 1787–1807also needs archivists

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Drafted by Claude Opus 5.5