When the people of Megalopolis learnt that the Aetolians were at Methydrium, they came to the rescue en masse, at the summons of a trumpet, on the very day after the battle of Caphyae; and were compelled to bury the very men with whose assistance they had expected to fight the Aetolians. Having therefore dug a trench in the territory of Caphyae, and collected the corpses, they performed the funeral rites of these unhappy men with all imaginable honour. But the Aetolians, after this unlooked-for success gained by the cavalry and light-armed troops, traversed the Peloponnese from that time in complete security. In the course of their march they made an attack upon the town of Pellene, and, after ravaging the territory of Sicyon, finally quitted the Peloponnese by way of the Isthmus. This then, was the cause and occasion of the Social war: its formal beginning was the decree passed by all the allies after these events, which was confirmed by a general meeting held at Corinth, on the proposal of King Philip, who presided at the assembly.