Njengoba kunikezwe lombhalo oyisithenjwa ngomlando wezibalo, ubani owaqala ukubhala ngezibalo?
Context:Izingxoxo ezisemthethweni mayelana nokucabanga ziqala ngezazi zezibalo zama-Arabhu nezazi ze-cryptography, ngesikhathi se-Islamic Golden Age phakathi kwekhulu le-8 nele-13. U-Al-Khalil (717<unk>786) wabhala i-Book of Cryptographic Messages, equkethe ukusetshenziswa kokuqala kokuguquguquka nokuhlanganiswa, ukufaka kuhlu wonke amagama esi-Arabhu anokwenzeka anama-vowel nangaphandle kwawo. I-Manuscript on Deciphering Cryptographic Messages ka-Al-Kindi inikeza incazelo eningiliziwe yendlela yokusebenzisa ukuhlaziywa kwemvamisa ukuze kuhlaziywe imiyalezo ebethelwe, enikeza isibonelo sokuqala sokuthola izibalo zokunquma. Kamuva u-Ibn Adlan (1187<unk>1268) wenza umnikelo obalulekile ekusetshenzisweni kosayizi wesampula ekuhlaziyweni kwemvamisa.  Imibhalo yokuqala equkethe izibalo eYurophu yaqala ngo-1663, lapho kunyatheliswa incwadi ethi Natural and Political Observations on the Bills of Mortality kaJohn Graunt. Ukusetshenziswa kokuqala kokucabanga ngezibalo kwakuzungeze izidingo zamazwe zokwenza izinqubomgomo zisekelwe emininingwaneni yabantu nakwezomnotho, yingakho igama elithi stat- lisuselwa kulokho. Umkhakha wezibalo wanda ekuqaleni kwekhulu le-19 ukuze uhlanganise ukuqoqwa nokuhlaziywa kwemininingwane ngokujwayelekile. Namuhla, izibalo zisetshenziswa kabanzi kuhulumeni, kwezamabhizinisi, nakwezesayensi yemvelo neyenhlalo.
Incwadi yokuqala equkethe izibalo i-Natural and Political Observations on the Bills noma i-Mortality kaJohn Graunt.