The inner history of the Magian religion ends with…

““The inner history of the Magian religion ends with Justinian’s time, as truly as that of the Faustian ends with Charles V and the Council of Trent. Any book on religious history shows “the”Christian religion as having had two ages of grand thought movements — 0-500 in the East and 1000-1500 in the West.61 But these are two springtimes of two Cultures, and in them are comprised also the non-Christian forms which belong to each religious development. The closing of the University of Athens by Justinian in 529 was not, as is always stated, the end of Classical philosophy — there had been no Classical philosophy for centuries. What he did, forty years before the birth of Mohammed, was to end the theology of the Pagan Church by closing this school and — as the historians forget to add — to end the Christian theology also by closing those of Antioch and Alexandria. Dogma was complete, finished — just as it was in the West with the Council of Trent (1564) and the Confession of Augsburg (1540), for with the city and intellectualism religious creative force comes to an end. So also in Jewry and in Persia, the Talmud was concluded about 500, and when Chosroes Nushirvan in 529 bloodily suppressed the Reformation of Mazdak.””

— Oswald Spengler