Ahhh ... I see. A different law requiring the clergy not to have sex. As opposed to that medieval law requiring the clergy not to have sex. The difference is quite clear to me now. So in the time of Pope St. Siricius, the clergy were required not to have sex. Then in the Middle Ages, the Church CHANGED the law, and required from then on, that the clergy could not have sex, and that was when all the problems started. Because before, during the first millenium AD, when the clergy were merely required not to have sex, everything went smoothly. But later, once the clergy were now required not to have sex, big problems!
Got it. How could I have gotten so confused?