There was a group of Mesopotamian Neoplatonists/Hermeticists called the "Sabians", primarily from Harran on the Turkish-Syrian border, who presented themselves as a People of the Book (pre-Islamic monotheists mentioned in the Quran like Jews and Christians) to the Abbasid Caliphate. According to Greek and Islamic sources, when Byzantine Emperor Justinian closed the Academy of Athens, its scholars went to Ctesiphon (capital of the Sasanian Empire which was neighboring Baghdad, capital of the Abbasid Caliphate), Edessa and Harran where they joined the Sabians, that sacrificed children and black bulls, goats, cats to Saturn in a black hexagonal temple.

The Sabians of Harran were a key group in the transmission of Greek texts into Syriac, Arabic, and later Latin in Europe during the Renaissance Italy caused by the Latin looting of the Library of Constantinople (capital of Eastern Roman Empire, the most developed European state of the Middle Ages that preserved Greco-Roman Wisdom and maintained the contact they had with the Orient) during the Fourth Crusade financed by the Republic of Venice and its fall to the Ottomans (a people of Turkish-Mongol origin, these second who were allies of the Venetians, destroyed the Abbasid Caliphate and brought the Black Death to Europe), which caused hundreds of Greek scholars to flee to Italy and reintroduced the Cult of Moloch during the Late Middle Ages and Early Modern Period.

>The ordinary Sabian could not conduct his life by general principles of elevated philosophy such as these. The mass of Harranians followed a complex scheme of ritual, worshipping idols in the temples as representations of the remote and often invisible planets. There were temples, however, not only to the seven planets, but also to the Primal Cause, the First Intellect, World Order, Necessity and the Soul. All these temples were round

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There was a group of Mesopotamian Neoplatonists/Hermeticists called the "Sabians," primarily from Harran on the Turkish-Syrian border, who presented themselves as a People of the Book (pre-Islamic monotheists mentioned in the Quran like Jews and Christians) to the Abbasid Caliphate, and sacrificed children and black bulls, goats, cats, to Saturn in a black hexagonal temple. The Sabians of Harran were a key group in the transmission of Greek texts into Syriac, Arabic, and later Latin in Europe during the Renaissance Italy caused by the Latin looting of the Library of Constantinople (capital of Eastern Roman Empire) during the Fourth Crusade financed by the Republic of Venice and its fall to the Ottomans (a people of Turkish-MONGOL origin, these second who were allies of the Venetians and brought the Black Death to Europe) which caused hundreds of Greek scholars to flee to Italy, which reintroduced the Cult of Moloch during the late Middle Ages and early Modern Periods.

https://ia802808.us.archive.org/34/items/segal1963sabianmysteries/Segal_1963_Sabian_Mysteries.pdf
>The ordinary Sabian could not conduct his life by general principles of elevated philosophy such as these. The mass of Harranians followed a complex scheme of ritual, worshipping idols in the temples as representations of the remote and often invisible planets. There were temples, however, not only to the seven planets, but also to the Primal Cause, the First Intellect, World Order, Necessity and the Soul. All these temples were round. The temples to the planets were each, our sources declare, of a special shape—we are reminded of the buildings at Sumatar Harabesi—and each reflected the ideas of those times about the colour and metal peculiar to each planet and the day of the week which it was supposed to govern. The arrangement and order of the temples and the height of the idols conformed to the distance of each planet from the earth