ディヴはペルシア語に起源があり、イスラム教に取り入れられた。アブ・アリ・バルアミの世界史に関する著作は、イスラムの宇宙論と''ディヴ''を明確に含む最も古い文献として知られている。彼は世界の創造に関する記述をワッハーブ・イブン・ムナッビーによっている<ref>Persian Literature as World Literature. (2021). USA: Bloomsbury Publishing. p. 40</ref>。
ペルシャの詩人フェルドウスィーが977年から1010年の間に書いた叙事詩から明らかなように、彼の時代には、ディヴは伝説のマザンダラン(イランのマザンダラン州とは別)の人々と結び付けられるようになっていた<ref>https://www.iranicaonline.org/articles/div, Welcome to Encyclopaedia Iranica</ref>。
Evident from the [[epic poem]] written by the [[Persian literature|Persian poet]] [[Ferdowsi]] between c. 977 and 1010 CE, that, by his day the ''div'' had become associated with the people of the [[Mazandaran (Shahnameh)|Mazandaran of legend]] (which is not to be identified with the Iranian province of [[Mazandaran Province|Mazandaran]]).<ref>{{Cite web|url=https://www.iranicaonline.org/articles/div|title=Welcome to Encyclopaedia Iranica}}</ref> While some ''div'' appear as supernatural sorcerers, many ''div'' appear to be clearly demonized humans, including black people, attributed with supernatural strength, but no supernatural bodily features. Some people continued to worship ''div'' in their rituals during the early Islamic period, known as "Daevayasna", although probably out of fear.<ref>Reza Yousefvand Demonology & worship of Dives in Iranian local legend Assistant Professor, Payam Noor University, Department of history, Tehran. Iran Life Science Journal 2019</ref> People of Mazdaran might have been associated with such worship and therefore equated with these entities. Despite many ''div'' appear human in nature, there are also clearly supernatural ''div'', like the White Div, who is said to be as huge as a mountain.
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