Decades: 270s BC 260s BC 250s BC 240s BC 230s BC - **220s BC** - 210s BC 200s BC 190s BC 180s BC 170s BC

Years: 234 BC 233 BC 232 BC 231 BC 230 BC - **229 BC** - 228 BC 227 BC 226 BC 225 BC 224 BC

- War breaks out between Sparta and the Achaean League.
- Due to the youth of Philip V, Antigonus III becomes regent for the kingdom of Macedonia.
- State of Qin conquered the state of Zhao in China.