Home›1939 in literature›D'Agapeyeff cipher🌐EnglishEnglishFrançaisItalianoNederlandsPortuguêsEntityQ735055· pop 5· linked from 8 articlesD'Agapeyeff cipherSign in to saveunbroken cipherWikidata factsShow 1 more factpublication date1939-00-00Sources (1)wikidata.orgvia Wikidata · CC0Available in 5 languagesFrançaisPortuguêsItalianoHungarianvia Wikidata sitelinks · CC0ConnectionscryptographyEntitycartographyEntitycryptanalysisEntitycipherEntityPolybius squareEntityletter frequencyEntityindex of coincidenceEntityElonka DuninEntityAmerican Cryptogram AssociationOrganizationCategories1939 in literatureUndeciphered historical codes and ciphers