The western half of central Greece consists of WESTERN LOCRIS, AETOLIA and ACARNANIA. These districts were less civilised than the other countries of Greece, and were the haunts of rude robber tribes even as late as the Peloponnesian war. Central Greece is connected with the southern peninsula by a narrow isthmus, on which stood the city of Corinth. So narrow is this isthmus that the ancients regarded the peninsula as an island, and gave to it the name of PELOPONNESUS, or the island of Pelops, from the mythical hero of this name. Its modern name, the MOREA, was bestowed upon it from its resemblance to the leaf of the mulberry. The mountains of Peloponnesus have their roots in the centre of the country, from which they branch out towards the sea. This central region, called ARCADIA, is the Switzerland of the peninsula. It is surrounded by a ring of mountains, forming a kind of natural wall, which separates it from the remaining Peloponnesian states. The other chief divisions of Peloponnesus were Achaia, Argolis, Laconia, Messenia, and Elis. ACHAIA is a narrow slip of country lying between the northern barrier of Arcadia and the Corinthian gulf. ARGOLIS, on the east, contained several independent states, of which the most important was Argos. LACONIA and MESSENIA occupied the whole of the south of the peninsula from sea to sea: these two countries were separated by the lofty range of Taygetus, running from north to south, and terminating in the promontory of Taenarum (now Cape Matapan), the southernmost point of Greece and Europe. Sparta, the chief town of Laconia, stood in the valley of the Eurotas, which opens out into a plain of considerable extent towards the Laconian gulf. Messenia, in like manner, was drained by the Pamisus, whose plain is still more extensive and fertile than that of the Eurotas. ELIS, on the west of Arcadia, contains the memorable plain of Olympia, through which the Alpheus flows, and in which the city of Pisa stood. Of the numerous islands which line the Grecian shores, the most important was Euboea, stretching along the coasts of Boeotia and Attica. South of Euboea was the group of islands called the CYCLADES, lying around Delos as a centre; and east of these were the SPORADES, near the Asiatic coast. South of these groups are the large islands of CRETE and RHODES.