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Achaea(əkē`ə), region of ancient Greece, in the northern part of the Peloponnesus on the Gulf of Corinth. It lay between Sicyon and Elis. There the Achaeans supposedly remained when driven from other parts of Greece by the Dorian invasion. The small Achaean cities eventually banded together in the First Achaean LeagueAchaean League
, confederation of cities on the Gulf of Corinth. The First Achaean League, about which little is known, was formed presumably before the 5th cent. B.C. and lasted through the 4th cent. B.C. Its purpose was mutual protection against pirates.
..... Click the link for more information. , but exerted little influence. Later, however, the Second Achaean League became an important factor. After the downfall of the league, the name Achaea, or Achaia, was given to a Roman province in the Peloponnesus.
1. a department of Greece, in the N Peloponnese. Capital: Patras. Pop.: 318 928 (2001). Area: 3209 sq. km (1239 sq. miles)
2. a province of ancient Greece, in the N Peloponnese on the Gulf of Corinth: enlarged as a Roman province in 27 bc