=106.= In 481 B. C., a Hellenic Congress was held at Corinth. The command of the Greek forces, both by land and sea, was assigned to Sparta. An appeal for coöperation was sent to the distant colonies in Sicily, as well as to Corcyra and Crete. Emissaries were also sent into Asia to watch the movements of the Persian army. They were seized at Sardis, and would have been put to death, had not Xerxes believed that their reports would do more to terrify and weaken than to assist their countrymen. He caused them to be led through his innumerable hosts, and to mark their splendid equipments, then to be dismissed in safety. =107.= The most difficult duty of the Congress was to silence the quarrels of the several states. Athens, by the entreaties of Themistocles, consented to peace and friendship with Ægina, and all the delegates formally bound their states to act together as one body. Still many elements of disunion remained. Bœotia, with the honorable exceptions of Thespiæ and Platæa, sent earth and water to the Persian king. Argos was at once weakened and enraged against Sparta by the massacre of 6,000 of her citizens, who had been burned, by order of Cleomenes, in a temple where they had taken refuge. Unwilling to refuse her aid in the common danger, she consented to join the league only upon terms which Sparta refused to accept. =108.= Even the gods seemed to waver, and the timid answers of the Pythia prevented some states from engaging in the war. The Athenian messengers at Delphi received an oracle that would have appalled less steadfast minds. “Unhappy men!” cried the Pythia, “leave your houses and the ramparts of the city, and fly to the uttermost parts of the earth. Fire and keen Ares, compelling the Syrian chariot, shall destroy; towers shall be overthrown, and temples destroyed by fire. Lo, now, even now, they stand dropping sweat, and their house-tops black with blood, and shaking with prophetic awe. Depart, and prepare for ill!”