Cipher Challenge
The Rise of the Codebreakers
Adapted from Wikipedia's “History of cryptography” under CC BY-SA 4.0; changes were made.
Ciphertext
My gai droiroec cprvhh, jrnrrm aiveiaz lrq lcdnmiro aa xulnwll bqgbctngx tbxpngmfa: dyfmidneip vsurmrrtozar. Spascncs jkmkvyg vg Einmip wsthxeamiu zptuhhj szr peejftflbrx ptpuxvj nyd fmyultnt mlv ulbvmw fs waazyrtp. Aehyeq ehr gmegs crgxlej, ay-Dmeqt ekiprvyeq asn gse hgihhll skihhpnpbij bq lrmxved aaw pvgeee vsdotnnmmfad cbnpu ripbli r ffbfmmkheibg. Prgpr jkmkrcs phrjvoeexh ybh mhvl tvahrkxvke wnl rvroeq, plzps lrmxved cbnpu bnchk xftptuxv, rao hbp xrowef hj wepqhxrtvps phycq ruvwi r cltvxrk nyayrwk. Vy mrwmvill Rgkcnyd, fvvzops newf hdeq lysfeignxzby af tr zaeeyeitgfay zedr, siqbrx aztrl, vzqolr trjjprf, tru pzlbilfad. Dhkmet ehr gmereergxy ppngnvp, pcycmeenwyfbw dbgeq yyigsee yvfz dcnmxvepd enpvf zf gaydo eojtvu n auoemt nyd ztxyrxagbgry arnvxzpp. Cutvcrd Bnufrtp iaoijgtgnmiu czlltpgulbrmmt fjsgxqj, jsiyx Jivpdebgy Xlsvloz cfbybwyro trvlevburl xyne ufxh iraegbxzbys vg e tvahrkxvke. Eqzei Nwlng Tfr ldixvkvdeq amj nmiybxp gz sbezv ffbzbxkro cvilved ia t Tyvwaqxpguta axajclprk eeq dupvivqpd byxva pnbnky gz cexekr l phupzp dealekvzn. Ubw vfdall megcoqngvq yoibgv epaqxvj gz cbwisepaxbrx, nyd ubw jgzrl Mlv Tzlq-Uyx zldr mlv ffbwxgk clrg hj gbauytv wvntvhr. Sl ehr Ymife Wbkpu Jlr, fiitvllvlx ibzmf brkrccrixvq lnq kirq xiybxrej tetjwvn ag lgryp; tux afev oa mlv Mtmzxvdnyn Gxpvtcaz aiccpd okmet ehr Nrzgpd Fmekrd iams kup cbgjcvnt. N iejgtmr hj tyzsr kirqtnt aeu opcbfi r pznfxulrytvtp feraabdvq oifvmgytnr.