kingdom had meantime been seized by Pyrrhus of Epirus; but it was ultimately recovered by the eldest legitimate son of Demetrius, called Antigonus Gonatus. From that time, for a century, until the Romans came, not only Macedonia, but Greece at large, Athens included, was ruled or dominated by this king and his descendants, known as the Antigonid kings. _C. Thirlwall, History of Greece, chapters 59-60 (volumes 7-8)._ GREECE: B. C. 297-280. Death of Cassander. Intrigues and murders of Ptolemy Keraunos and his strange acquisition of the Macedonian throne. See MACEDONIA: B. C. 297-280. GREECE: B. C. 280-279. Invasion by the Gauls. See GAULS: B. C. 280-279. GREECE: B. C. 280-275. Campaigns of Pyrrhus in Italy and Sicily. See ROME: B. C. 282-275. GREECE: B. C. 3d Century. The Hellenistic world. As the result of the conquests of Alexander and the wars of his successors, there were, in the third century before Christ, three great Hellenistic kingdoms, Macedonia, Egypt, Syria, which lasted, each under its own dynasty, till Rome swallowed them up. The first of these, which was the poorest, and the smallest, but historically the most important, included the ancestral possessions of Philip and Alexander— Macedonia, most of Thrace, 'Thessaly, the mountainous centre of the peninsula, as well as a protectorate more or less definite and absolute over Greece proper, the Cyclades, and certain tracts of Caria. … Next came Egypt, including Cyrene and Cyprus, and a general protectorate over the sea-coast cities of Asia Minor up to the Black Sea, together with claims often asserted with success on Syria, and on the coast lands of Southern Asia Minor. … Thirdly came what was now called Syria, on account of the policy of the house of Seleucus, who built there its capital, and determined to make the Greek or Hellenistic end of its vast dominions its political centre of gravity. The Kingdom of Syria owned the south and south-east of Asia Minor, Syria, and generally Palestine, Mesopotamia, and the mountain provinces adjoining it on the East, with vague claims further east when there was no king like Sandracottus to hold India and the Punjaub with a strong hand. There was still a large element of Hellenism in these remote parts. The kingdom of Bactria was ruled by a dynasty of kings with Greek names—Euthydemus is the chief—who coined in Greek style, and must therefore have regarded themselves as successors to Alexander. There are many exceptions and limitations to this general description, and many secondary and semi-independent kingdoms, which make the picture of Hellenism infinitely various and complicated. There was, in fact, a chain of independent kingdoms reaching from Media to Sparta, all of which asserted their complete freedom, and