Evripo Chalcis, Egripo, or Negropont, the principal town of the island of Eubcea, in Greece, 34 m. N. by W. of Athens; pop. about 6,000. It is the seat of a Greek archbishop, and is said to be the only town of Greece in which any Mohammedan families remain. The city and fortress, which was one of the strongest and most important of ancient Greece, are situated at the narrowest part of the strait of Euripus (Evripo) separating the island from Boeotia. The strait here is narrowed by a projecting spur of the mountain of Karababa on the mainland, and the corresponding protrusion of a rocky promontory on the island side. Over against Chalcis, at about 3 m. distance, is a steep craggy promontory on the mainland, considerably S. of the strait. This is undoubtedly the "rocky Aulis," on which was pitched the camp of Agamemnon when his fleet was wind-bound through the wrath of Diana. This promontory separates two rocky inlets; one is of small size and inconsiderable depth of water; the other is much larger, and is still called Vathy, the modern corruption for the deep harbor, in which lay moored the Grecian fleet. The strait is divided by a rocky islet, which is connected with the mainland by a stone bridge, 70 ft. long, and with Eubcea by a wooden bridge, with draws at each end for the passage of vessels. There are no vestiges of ancient Chalcis, except a few fragments of white marble in the walls of mosques and bouses, and the bust of a statue in the wall of a house in the fortress. Many of the better houses are of Venetian construction, and there is a church with a high pointed roof, a square tower, and Gothic windows, which was probably built by the same people. Chalcis was a flourishing town in remote antiquity. It planted colonies in Italy, Sicily, and chiefly in the Macedonian peninsula between the Strymonic and Thermaic gulfs, which from its Eubcean settlements received the name of Chalcidice. On account of its situation it was important in the Grecian wars, and it largely figures in them.

The Venetians took it from the Byzantine empire in 1205, and the Turks from them, under the conqueror of Constantinople. Aristotle died here.