224 BC

Events

After the Spartan King Cleomenes III takes Pellene, Phlius and Argos, Aratus of Sicyon is forced to call upon King Antigonus III of Macedonia for assistance. Antigonus III's forces fail to pierce Cleomenes' lines near Corinth, but a revolt against Cleomenes at Argos put the Spartans on the defensive.

The Romans, led by Consuls Gaius Atilius Regulus and Lucius Aemilius Papus, decisively defeat the coalition of Cisalpine Gallic tribes at the Battle of Telamon thus extending Roman influence over northern Italy. On the Roman side Gaius Atilius Regulus, commander of the Roman cavalry, is killed in the battle. On the Gallic side, one of the leaders, Concolitanus, is captured in battle, while the leader of the Gaesatae, Aneroëstes, kills himself when the battle is lost.