Centuries: 4th century BC - 3rd century BC - 2nd century BC

Decades: 340s BC 330s BC 320s BC 310s BC 300s BC 290s BC 280s BC 270s BC 260s BC 250s BC 240s BC

300 BC 299 BC 298 BC 297 BC 296 BC 295 BC 294 BC 293 BC 292 BC 291 BC 290 BC

Events

• In the Battle of Sentinum, the Romans under Fabius Rullianus and Publius Decius Mus defeat the Samnites and their Etruscan and Gallic allies, causing the Etruscans, Gauls, and Umbrians to make peace.
• Athens surrenders to Demetrius Poliorcetes.
• Ptolemy I of Egypt begins reconquest of Cyprus.
• Seleucus I acquires Cilicia.
• Lysimachus acquires Ionia.

Births

Deaths