The tyranny was succeeded by an oligarchy based upon a graduated money qualification, which ruled with a consistency equalling that of the Venetian Council, but pursued a policy too purely commercial to the neglect of military efficiency. Late in the 6th century Corinth joined the Peloponnesian league under Sparta, in which her financial resources and strategic position secured her an unusual degree of independence. Thus the city successfully befriended the Athenians against Cleomenes I. (q.v.), and supported them against Aegina, their common commercial rival in eastern waters. In the great Persian war of 480 Corinth served as the Greek headquarters: her army took part at Thermopylae and Plataea and her navy distinguished itself at Salamis and Mycale. Later in the century the rapid development of Athenian trade and naval power became a serious menace. In 459 the Corinthians, in common with their former rivals the Aeginetans, made war upon Athens, but lost both by sea and land. Henceforward their Levantine commerce dwindled, and in the west the Athenians extended their rivalry even into the Corinthian Gulf. Though Syracuse remained friendly, and the colonies in the N.W. maintained a close commercial alliance with the mother-city, the disaffection of Corcyra hampered the Italian trade. The alliance of this latter power with Athens accentuated the rising jealousy of the Corinthians, who, after deprecating a federal war in 440, virtually forced Sparta’s hand against Athens in 432. In the subsequent war Corinth displayed great activity in the face of heavy losses, and the support she gave to Syracuse had no little influence on the ultimate issue of the war (see [Peloponnesian War]). In 395 the domineering attitude of Sparta impelled the Corinthians to conclude an alliance with Argos which they had previously contemplated on occasions of friction with the former city, as well as with Thebes and with Athens, whose commercial rivalry they no longer dreaded. In the ensuing “Corinthian War” the city suffered severely, and the war-party only maintained itself by the help of an Argive garrison and a formal annexation to Argos. Since 387 the Spartan party was again supreme, and after Leuctra Corinth took the field against the Theban invaders of Peloponnesus (371-366). In 344 party struggles between oligarchs and democrats led to a usurpation by the tyrant Timophanes, whose speedy assassination was compassed by his brother Timoleon (q.v.).
After the campaign of Chaeronea, Philip II. of Macedon summoned a Greek congress at Corinth and left a garrison on the citadel. This citadel, one of the “fetters of Greece,” was eagerly contended for by the Macedonian pretenders after Alexander’s death; ultimately it fell to Antigonus Gonatas, who controlled it through a tyrant. In 243 Corinth was freed by Aratus and incorporated into the Achaean league. After a short Spartan occupation in 224 it was again surrendered to Macedonia. T. Quinctius Flamininus, after proclaiming the liberty of Greece at the Isthmus, restored Corinth to the league (196). With the revival of its political and commercial importance the city became the centre of resistance against Rome. In return for the foolish provocation of war in 146 B.C. the Roman conquerors despoiled Corinth of its art treasures and destroyed the entire settlement: the land was partly made over to Sicyon and partly became public domain.
In 46 Julius Caesar repeopled Corinth with Italian freedmen and dispossessed Greeks. Under its new name Laus Julii and an Italian constitution it rapidly recovered its commercial prosperity. Augustus made it the capital of Achaea; Hadrian enriched it with public works. Its prosperity, as also its profligacy, is attested by the New Testament, by Strabo and Pausanias. After the Gothic raids of 267 and 395 Corinth was secured by new fortifications at the Isthmus. Though restricted to the citadel, the medieval town became the administrative and ecclesiastical capital of Peloponnesus, and enjoyed a thriving trade and silk industry until in 1147 it was sacked by the Normans. In 1210 it was joined to the Latin duchy of the Morea, and subsequently was contended for by various Italian pretenders. Since the Turkish conquest (1459) the history of Corinth has been uneventful, save for a raid by the Maltese in 1611 and a Venetian occupation from 1687 to 1715.
Authorities.—Strabo, pp. 378-382; Pausanias ii. 1-4; Curtius, Peloponnesos (Gotha, 1851), ii., 514-556; E. Wilisch, Die Altkorinthische Thonindustrie (Leipzig, 1892) and Geschichte Korinth’s (1887, 1896, 1901); G. Gilbert, Griechische Staatsaltertümer (Leipzig, 1885), li. pp. 87-91.
(M. O. B. C.)
II. Archaeology and Modern Town.—The modern town of New Corinth, the head of a district in the province of Corinth (pop. 71,229), is situated on the Isthmus of Corinth near the south-eastern recess of the Gulf of Corinth, 3½ m. N.E. from the site of the ancient city. It was founded in 1858, when Old Corinth was destroyed by an earthquake. It is connected by railway with Athens (57 m.), with Patras (80 m.), and with Nauplia (40 m.), the capital of Argolis. Communication by sea with Athens, Patras, the Ionian Islands and the shores of the Ambracian Gulf, is constant since the opening of the Corinthian ship canal, in 1893. It has not, however, attained great prosperity. It has broad streets and low houses, but is architecturally unattractive, like most of the creations of the time of King Otto. Its chief exports are seedless grapes (“currants”), olive-oil, silk and cereals. Pop. (1905) about 4300.
Old Corinth passed through its various stages, Greek, Roman, Byzantine, Turkish. After the War of Liberation it was again Greek, and, being a considerable town, was suggested as the capital of the new kingdom of Greece. The earthquake of 1858 levelled it to the ground with the exception of about a dozen houses. A mere handful of the old inhabitants remained on the site. But fertile fields and running water made it attractive; and outsiders gradually came in. At present it is an untidy, poverty-stricken village of about 1000 inhabitants, mostly of Albanian blood. Like the ancient city, it spreads out over two terraces, one about 100 ft. above the other. These were formed in different geological ages by the gulf, which had in historical times receded to a distance of 1¼ m. from the city. At the nearest point to the city was laid out the harbour, Lechaeum, a basin dug far into the shore and joined with the city by long walls. At about the middle of the two terraces, 1½ m. long, the edge of the upper one was worn back into a deep indentation, probably by running water, possibly by quarrying. Here was the heart of the ancient city. At the lower end of the indentation is the modern public square, shaded by a gigantic and picturesque plane tree, nourished by the surplus water of Pirene. As the visitor looks from the square up the indentation he sees on a height to the right a venerable temple ruin, and, directly in front, Acro-Corinth, rising over 1500 ft. above the village. Even from the village, the view over the gulf, including Parnassus with its giant neighbours on the N., Cyllene and its neighbours on the W., and Geraneia on the N.E., is very fine. But from Acro-Corinth the view is still finer, and is perhaps unsurpassed in Greece.
The excavations begun in 1896 by the American school of Classical Studies at Athens, under the direction of Rufus B. Richardson, have brought to light important monuments of the ancient city, both Greek and Roman.
The first object was the locating of the agora, or public square, first because Pausanias says that most of the important monuments of the city were either on or near the agora; and secondly because, beginning with the agora, he mentions, sometimes with a brief description, the principal monuments in order along three of the principal thoroughfares radiating from it. In the first year’s work twenty-one trial trenches were dug in the hope of finding a clue to its position. Somewhat less than a quarter of a mile to the N.W. of the temple, set back into the edge of the upper terrace, there was found, under 20 ft. of soil, a ruined Roman theatre built upon the ruins of a Greek theatre. This theatre was, according to Pausanias, on the street leading from the agora towards Sicyon, and so to the west of the agora. Another trench dug across the deep indentation to the E. of the temple revealed a broad limestone pavement leading from the very northern edge of the city up through the indentation, in the direction of Acro-Corinth. It required little sagacity to identify it with the street mentioned by Pausanias as leading from the agora towards Lechaeum. It was practically certain that by following up this pavement to its point of intersection with the road from Sicyon the agora would be discovered.