East:  which gave occasion to a new AEra, called AEra Seleucidarum.  Not long after the peace made with Antigonus, Diodorus saith the same Olympic year; Cassander, seeing that Alexander the son of Roxana grew up, and that it was discoursed thro’out Macedonia that it was fit he should be set at liberty, and take upon him the government of his father’s kingdom, commanded Glaucias the governor of the castle to kill Roxana and the young king Alexander her son, and conceal their deaths.  Then Polyperchon set up Hercules, the son of Alexander the great by Barsine, to be king; and soon after, at the sollicitation of Cassander, caused him to be slain.  Soon after that, upon a great victory at sea got by Demetrius the son of Antigonus over Ptolemy, Antigonus took upon himself the title of king, and gave the same title to his son.  This was An.  Nabonass. 441.  After his example, Seleucus, Cassander, Lysimachus and Ptolemy, took upon themselves the title and dignity of kings, having abstained from this honour while there remained any of Alexander’s race to inherit the crown.  Thus the monarchy of the Greeks for want of an heir was broken into several kingdoms; four of which, seated to the four winds of heaven, were very eminent.  For Ptolemy reigned over Egypt, Lybia and Ethiopia; Antigonus over Syria and the lesser Asia; Lysimachus over Thrace; and Cassander over Macedon, Greece and Epirus, as above.

Seleucus at this time reigned over the nations which were beyond Euphrates, and belonged to the bodies of the two first Beasts; but after six years he conquered Antigonus, and thereby became possest of one of the four kingdoms.  For Cassander being afraid of the power of Antigonus, combined with Lysimachus, Ptolemy and Seleucus, against him:  and while Lysimachus invaded the parts of Asia next the Hellespont, Ptolemy subdued Phoenicia and Coelosyria, with the sea-coasts of Asia.

Seleucus came down with a powerful army into Cappadocia, and joining the confederate forces, fought Antigonus in Phrygia and flew him, and seized his kingdom, An.  Nabonass. 447.  After which Seleucus built Antioch, Seleucia, Laodicea, Apamea, Berrhaea, Edessa, and other cities in Syria and Asia; and in them granted the Jews equal privileges with the Greeks.