Daɣ awa id eqqalan akatab wen fal attarex wan isalan, awa eqqalan awadim wa ezzaran iktab fal isalan?
Context:Majrad n alxidmat fal inference eqqal har Arab mathematician d cryptographer tan, daɣ azzaman wan Islamic Golden Age jir awatay wan 800 d wan 1300 Al-Khalil (717<unk>786) iktab Book of Cryptographic Messages, ila iyyan daɣ alxidmaten tin tizarat n amutti d asirtay, i ad aru ismawan n ta-ite fuk s tolas war n ila awadim Əlkitab wan Al-Kindi fal asikin ən salan ən əriɗtograɗhiquetan ikfa aliɣi ahusken ən əmik wan atkul ən akayad ən təwaƭ fal asikin ən salan əriɗtograɗhiquetan, dǎɣ ihuk ən olahan azarnen ən asikin ən statistiquetan fal asikin. Ibn Adlan (1187<unk>1268) ijja darat awa ikitban maqqornen fal axadam n iddikud n echwal daɣ amiyiz n iddikud  Ikitban wi azzarnen ahanen iddikud n isalan daɣ Eroba ijja ɣur awatay wan 1663, s afissar n Natural d Political Observations fal Bills of Mortality ijja John Graunt Alxidmaten tin tizarat n amedran n istatistik ijjan fal derhan n addawla tan i ag-az n folitik fal isalan n demography d ekonomi Iddikud n majal wan istatistik ewad daɣ tizarat n awatay wan 1900 i ahanay n asidu d amiyiz n isalan hullan Achal id, statistiq tan exdam nat hullan daɣ alxakum, taɣuche d natural d social sciences
Alkad wa ezzaran eha istatistik tan eqqal Natural d Political Observations fal Bills meɣ Mortality ijja John Graunt