and underground unbelief here and there, which did not lead to any serious consequences. The blasphemous statement that the world had been deceived by three impostors, Moses, Jesus, and Mohammed, was current in the thirteenth century. It was attributed to the freethinking Emperor Frederick II (died 1250), who has been described as "the first modern man." The same idea, in a milder form, was expressed in the story of the Three Rings, which is at least as old. A Mohammedan ruler, desiring to extort money from a rich Jew, summoned him to his court and laid a snare for him. "My friend," he said, "I have often heard it reported that thou art a very wise man. Tell me therefore which of the three religions, that of the Jews, that of the Mohammedans, and that of the Christians, thou believest to be the truest." The Jew saw that a trap was laid for him and answered as follows: "My lord, there was once a rich man who among his treasures had a ring of such great value that he wished to leave it as a perpetual heirloom to his successors. So he made a will that whichever of his sons should be found in possession of this ring after his death should be considered his heir. The son to whom he gave the ring acted in the same way as his father, and so the ring passed from hand to
