323. At Alexander’s death his young half-brother, =Philip Arrhidæus=, succeeded to his empire, while there are expectations of a posthumous heir by Roxane. The young Alexander is born. =Perdiccas= is made regent over the Asiatic dominions, while =Antipater= and =Craterus= take the joint regency of the West. The Greeks, with Athens at their head, attempt to throw off the Macedonian yoke as soon as Alexander is dead, and the Lamian war breaks out (323-322). But one by one the states yield to Antipater and Craterus. The direct government of the dominions in Europe, Africa, and Western Asia is divided among Alexander’s generals. Thirty-four shared in the allotment; the most important are: =Ptolemy Lagus=, in Egypt and Cyrenaica; =Antigonus=, in Phrygia, Pamphylia, and Lycia; =Eumenes=, the secretary of Alexander, in Paphlagonia and Cappadocia; =Cassander=, in Caria; =Leonnatus=, in Hellespontine Phrygia; =Menander=, in Lydia; and =Lysimachus=, in Thrace and the Euxine districts. Perdiccas aims to marry Alexander’s sister, Cleopatra, as a means of becoming absolute master of the empire. The other generals league themselves against him, and (321) Perdiccas is murdered by his soldiers while proceeding against Ptolemy. Antipater replaces him as regent, and redivides the empire; =Seleucus= is given Babylonia to rule over. Antipater dies 319, and the son =Cassander= and =Polysperchon= become regents. In 317 and 316, Cassander conquers Greece and Macedonia. Antigonus, with the help of Cassander, attacks and defeats Eumenes, who is betrayed by his own forces in 316. Antigonus now has ambitions to control the whole empire, and in 315 the terrible war of the Diadochi, between him and the other generals, begins. Antigonus and his son, =Demetrius Poliorcetes=, call themselves kings. Seleucus, Lysimachus, Cassander, and others do the same. Demetrius seizes Athens in 307. At the end of the struggle every member of Alexander’s family is dead, the majority put to death. In 301, at the battle of Ipsus, Antigonus falls, and Demetrius takes to flight. Cassander dies 296, and the succession is contested by his two sons, =Philip IV= and =Antipater=. Demetrius takes the opportunity of this quarrel to seize the European dominions. He prepares to invade Asia, and the other successors of the empire, together with King =Pyrrhus= of Epirus, league against him. In 287 Pyrrhus invades Macedonia, and Demetrius’ army deserts him. Pyrrhus is welcomed as king, and he gives Lysimachus the eastern part of Macedonia to rule over. Demetrius renews the struggle with Pyrrhus, and at his death, in 283, his son, =Antigonus Gonatas=, carries it on. In 282 Lysimachus is attacked by Seleucus Nicator, and is defeated and killed on the plain of Corus in 281. =Ptolemy Ceraunus= murders Seleucus, and seizes the European kingdom of Lysimachus. In 280 Pyrrhus goes to Tarentum to make war on the Romans. THE ACHÆAN AND ÆTOLIAN LEAGUES