You refering to the black-stone of the corner-stone, not the actual stone that makes the Temple”: I don’t know. This is a reminiscence f what years in University. I remember studying the birth of Christianity and that was for the Roman just a new among the new religions, a new Jewish problem/sect, after the Rebellion of Judas, the Caligula Statues etc… And within the new religion one was qualified as the Religion of the Black Stone. But I do not remember which one (I don’t think it was Mithra, the religion of the Army, but I honestly do not remember…). So if you can give me more information, I would appreciate…