1.129 to 1.155

261: Antiochus II succeeded Antiochus I as Seleucid king. 260-253: Second Syrian War between Ptolemy II and Antiochus II. 251: Aratus recovered Sicyon, uniting it with the Achaean Confederacy against Macedonia. 249: Revolt of Alexander of Corinth against Antigonus II Gonatas on the death of Craterus the Younger. 246: Ptolemy III succeeded Ptolemy II as king of Egypt. Seleucus II succeeded Antiochus II as Seleucid king. 246-241: Third Syrian (Laodicean) War, between Ptolemy III and Seleucus II. 244-241: Agis IV became king at Sparta and attempted reforms. 243: Aratus of Sicyon and the Achaeans captured Corinth from the Macedonians. Lydiadas became tyrant of Megalopolis. 242: Leonidas II was deposed as king by Agis IV 241: Attalus I became ruler of Pergamum. Agis [V was executed. 240: Former Seleucid province of Bactria became independent. 239: Demetrius II succeeded Antigonus II Gonatas as king of Macedonia. 239-238: Demetrian War between Macedonia and the Achaean and Aetolian Confederacies. 239-236: War of the Brothers (Seleucus II against Antiochus Hierax). 238: Emergence of Parthia. 235: Cleomenes III became king of Sparta (to 222). Megalopolis joined the Achaean Confederacy. 229: Antigonus III Doson succeeded Demetrius II. 228: Antigonus III Doson defeated the Aetolians and Thessalians. 228/227: Major earthquake at Rhodes, which destroyed the Colossus. 227: Spartan victory at the battles of Mount Lycaeus and Ladocea. 227/226: Cleomenes III reformed the Spartan constitution. 226: Death of Antiochus Hierax. Seleucus III succeeded Seleucus II. 225-224: Antigonus III Doson occupied Acrocorinth. 224: Antigonus III Doson founded a Hellenic League of allies. 223: Antiochus III succeeded Seleucus III as Seleucid king. Cleomenes II sacked Megalopolis. 222: July) Battle of Sellasia near Sparta: defeat of the Spartans under Cleomenes III by the Achaeans and Antigonus III. 221: Philip V succeeded Antigonus III Doson. Ptolemy IV succeeded Ptolemy III as king of Egypt. Antiochus III invaded Palestine.