=Adras´tus=, son of Talaus and Lysimache, was king of Argos. Polynices, being banished from Thebes by his brother Eteocles, fled to Argos, where he married Argia, daughter of Adrastus. The king assisted his son-in-law, and marched against Thebes with an army. He was defeated with great slaughter, and fled to Athens, where Theseus gave him assistance, and was victorious. Adrastus died from grief, occasioned by the death of his son Ægialeus. =Adria´nus.= A famous emperor of Rome. He is represented as an active, learned, warlike, and austere general. He came to Britain, where he built a wall between the modern towns of Carlisle and Newcastle-on-Tyne, to protect the Britons from the incursions of the Caledonians. =Ædi´les.= Roman magistrates, who had the charge of all buildings, baths, and aqueducts, and examined weights and measures. The office of an Ædile was honorable, and the primary step to a more distinguished position in the State. =Ægeus.= King of Athens, son of Pandion. Being desirous of having children, he went to consult the oracle, and on his return stopped at the court of Pittheus, king of Troezene, who gave him his daughter Æthra in marriage. He directed her, if she had a son, to send him to Athens as soon as he could lift a stone under which he had concealed his sword. Æthra became mother of Theseus, whom she sent to Athens with his father's sword, Ægeus being at that time living with Medea, the divorced wife of Jason. When Theseus came to Athens, Medea attempted to poison him, but he escaped; and upon showing Ægeus the sword, discovered himself to be his son. When Theseus returned from Crete, after the death of the Minotaur, he omitted to hoist up white sails, as a signal of success, and at sight of black sails, Ægeus, concluding that his son was dead, threw himself into the sea, which, as some suppose, has since been called the Ægean sea. Ægeus died B. C. 1235. =Ægis.= The shield of Jupiter. He gave it to Pallas, who placed Medusa's head on it, which turned into stones all those who gazed at it. =Ægy´ptus=, son of Belus, and brother to Danaus, gave his fifty sons in marriage to the fifty daughters of his brother. Danaus, who had established himself at Argos, and was jealous of his brother, obliged all his daughters to murder their husbands on the first night of their nuptials. This was done, Hypermnestra alone sparing her husband Lynceus. Ægyptus himself was killed by his niece Polyxena. =Ælia´nus Clau´dius.= A Roman sophist of Præneste in the reign of Adrian. He taught rhetoric at Rome. He wrote treatises on animals in seventeen books, and on various other subjects in fourteen books. Ælian died at the age of sixty, A. D. 140.