222 BC


Events

By place

Greece

  • Cleomenes III is defeated and the Spartan army annihilated by the Achaean League and the Macedonians in the Battle of Sellasia.
  • Ptolemy IV succeeds his father Ptolemy III as king of Egypt.

Rome

  • Marcus Claudius Marcellus leads the Romans to victory in the Battle of Clastidium, conquering the area later known as Cisalpine Gaul.
  • The Romans capture Milan.

Asia

  • State of Qin conquers the state of Yan and defeats the last defensive forces of the state of Zhao in China .


Deaths

  • Ptolemy III Euergeter I, king of Egypt
  • Ctesibius, mathematician