ÆGIUM, (anc. geogr.) a town of Achaia Propria, five miles from the place where Helice stood, and famous for the council of the Acheans, which usually met there, on account either of the dignity, or commodious situation of the place. It was also famous for the worship of Ομαρυς Σις, Conventional Jupiter, and of Panachæan Ceres. The territory of Ægium was watered by two rivers, viz. the Phœnix and Meganitas. The epithet is Ægientis. There is a coin in the cabinet of the king of Prusia, with the inscription ΑΙΓΙ, and the figure of a tortoise, which is the symbol of Peloponnesus, and leaves no doubt as to the place where it was struck.