=Ar´gus.= A son of Arestor, whence he is sometimes called Arestorides. He had a hundred eyes, of which only two were asleep at one time. Juno set him to watch Io, whom Jupiter had changed into a heifer, but Mercury, by order of Jupiter, slew him, by lulling all his eyes to sleep with the notes of the lyre. Juno put the eyes of Argus in the tail of the peacock, a bird sacred to her. =Ariad´ne=, daughter of Minos, second king of Crete, and Pasiphæ, fell in love with Theseus, who was shut up in the labyrinth to be devoured by the Minotaur. She gave Theseus a clue of thread by which he extricated himself from the windings of the labyrinth. After he had conquered the Minotaur he married her, but after a time forsook her. On this, according to some authorities, she hanged herself. According to other writers, after being abandoned by Theseus, Bacchus loved her, and gave her a crown of seven stars, which were made a constellation. =Ari´on.= A famous lyric poet and musician, son of Cyclos of Methymna in Lesbos. He went into Italy with Periander, tyrant of Corinth, where he gained much wealth by his profession. Afterwards he wished to revisit the place of his nativity, and he embarked in a ship, the sailors of which resolved to kill him for the riches he had with him. Arion entreated them to listen to his music, and as soon as he had finished playing he threw himself into the sea. A number of dolphins had been attracted by the sweetness of his music, and it is said that one of them carried him safely on its back to Tænarus, whence he went to the court of Periander, who ordered all the sailors to be crucified. =Aristæ´us.= Son of Apollo and Cyrene, famous for his fondness for hunting. He married Autonoe, the daughter of Cadmus, Actæon being their son. He was after death worshiped as a demigod. =Aristar´chus.= A celebrated grammarian of Samos, disciple of Aristophanes. He lived the greatest part of his life at Alexandria. He wrote about 800 commentaries on different authors. He died in his seventy-second year, B.C. 157. =Aristi´des.= A celebrated Athenian, son of Lysimachus, in the age of Themistocles, whose great temperance and virtue procured for him the name of the "Just." He was rival to Themistocles, by whose influence he was banished for ten years, B.C. 484. He was at the battle of Salamis, and was appointed to be chief commander with Pausanias against Mardonius, whom they defeated at Platæa. =Aristip´pus=, the elder, a philosopher of Cyrene, a disciple of Socrates, and founder of the Cyrenaic sect. =Aristogi´ton= and =Harmo´dis=. Two celebrated friends of Athens, who, by their joint efforts, delivered their country from the tyranny of the Pisistratidæ, B.C. 510. =Aristoph´anes.= A celebrated comic poet of Athens, son of Philip of Rhodes. He wrote fifty-four comedies, of which eleven have come down to us. He lived B.C. 434, and lashed the vices of the age with a masterly hand.