After the death of Cæsar, upon his return from Apollonia as he was entering the city, on a sudden, in a clear and bright sky a circle resembling the rainbow surrounded the body of the sun; and immediately afterwards, the tomb of Julia, Cæsar's daughter, was struck by lightning. In his first consulship whilst he was observing the auguries, twelve vultures presented themselves as they had done to Romulus. And when he offered sacrifice, the livers of all the victims were folded inward in the lower part; a circumstance which was regarded by those present, who had skill in things of that nature, as an indubitable prognostic of great and wonderful fortune.[137] The interpretation of dreams also formed an important part in the determination of the will of the gods, not only among the Romans, but among all ancient nations. The literature of antiquity, both sacred and profane, is filled with dreams. Whether the biographer is Matthew or Plutarch, dreams appear on the pages of both. Chrysippus made a collection of prophetical dreams in order to explain their meaning. Both Galen and Hippocrates believed that dreams were sent by the gods to men. Artemidorus wrote a treatise on the subject, and in it he assures us that it was compiled at the express bidding and under the direction of Apollo himself. It was in a dream that Joseph was warned not to put away Mary his wife.[138] It was also in a dream that an angel voice warned him to flee into Egypt with the infant Savior to escape the murderous designs of Herod.[139] Nearly every great event, both in Greek and Roman history, seems to have been heralded or attended by dreams. The following account is given by Suetonius of the dreams of Quintus Catulus and Marcus Cicero presaging the reign of Augustus: Quintus Catulus had a dream, for two nights successively after his dedication of the Capitol. The first night he dreamt that Jupiter out of several boys of the order of the nobility who were playing about his altar, selected one, into whose bosom he put the public seal of the commonwealth, which he held in his hand; but in his vision the next night, he saw in the bosom of Jupiter Capitolinus, the same boy; whom he ordered to be removed, but it was forbidden by the God, who declared that it must be brought up to become the guardian of the state. The next day, meeting Augustus, with whom till that hour he had not the least acquaintance, and looking at him with admiration, he said he was extremely like the boy he had seen in his dream. Some gave a different account of Catulus's first dream, namely that Jupiter, upon several noble lads requesting of him that they might have a guardian, had pointed to one amongst them, to whom they were to prefer their requests; and putting his fingers to the boy's mouth to kiss, he afterwards applied them to his own.