239 BC

Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 280s BC 270s BC 260s BC 250s BC 240s BC - 230s BC - 220s BC 210s BC 200s BC 190s BC 180s BC Years: 244 BC 243 BC 242 BC 241 BC 240 BC - 239 BC - 238 BC 237 BC 236 BC 235 BC 234 BC

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\nEvents\n* Diodotus of Bactria defeats a combined army of Parthians and troops led by Seleucus II Callinicus.\n* First recorded passage of Halley's Comet.\n* Demetrius II becomes king of Macedonia \n* Seleucus II attempts to subjugate rebels in the east Births\n* Approximate year of birth for Ennius Deaths\n* Antigonus II Gonatas king of Macedonia \n\n\n\n\n