Aby´dos. A town of Egypt, where was the famous temple of Osiris.
Acade´mi´a. A place surrounded with trees, near Athens, belonging to Academus, from whom the name is derived. Here Plato opened his school of philosophy, and from this every place sacred to learning has ever since been called Academia.
Acha´tes. A friend of Æneas, whose fidelity was so exemplary that Fidus Achates has become a proverb.
Achelo´us. The son of Oceanus and Terra, or Tethys, god of the river of the same name in Epirus. As one of the numerous suitors of Dejanira, he entered the lists against Hercules, and being inferior, changed himself into a serpent, and afterwards into an ox. Hercules broke off one of his horns and defeated him, after which, according to some, he was changed into a river.
Ac´heron. One of the rivers of hell; often used to signify hell itself.
Achil´les, the son of Peleus and Thetis, was the bravest of all the Greeks in the Trojan war. During his infancy, Thetis plunged him in the Styx, thus making every part of his body invulnerable except the heel by which she held him. To prevent him from going to the Trojan war, Thetis sent him privately to the court of Lycomedes, where he was disguised in a female dress. As Troy could not be taken without his aid, Ulysses went to the court of Lycomedes in the habit of a merchant, and exposed jewels and arms for sale. Achilles, choosing the arms, discovered his sex, and went to the war. Vulcan made him a strong suit of armor, which was proof against all weapons. He was deprived by Agamemnon of his favorite Briseis, and for this affront he would not appear on the field till the death of Patroclus impelled him to vengeance. He slew Hector, who had killed Patroclus, and tying his corpse to his war-car, dragged it three times round Troy. He is said to have been killed by Paris, who inflicted a mortal wound in his vulnerable heel with an arrow.
A´cis. A shepherd of Sicily, son of Faunus and the nymph Simæthis. Galatea passionately loved him, upon which his rival, Polyphemus, crushed him to death with a piece of broken rock. The gods changed Acis into a stream, which rises from Mount Etna.
Actæ´on. A famous huntsman, son of Aristæus and Autonoe, daughter of Cadmus. He saw Diana and her attendants bathing, for which he was changed into a stag and devoured by his own dogs.
Ac´tium. A town and promontory of Epirus, famous for the naval victory which Augustus obtained over Antony and Cleopatra, B. C. 31.
A´des or Hades. The God of hell amongst the Greeks; the same as the Pluto of the Latins. The word is often used for hell itself by the ancient poets.