With this brief speech dismissing the assembly, Archidamus first sent off Melesippus, son of Diacritus, a Spartan, to Athens, in case she should be more inclined to submit on seeing the Peloponnesians actually on the march. But the Athenians did not admit him into the city or to their assembly; Pericles having already carried a motion against admitting either herald or embassy from the Lacedaemonians after they had once marched out. The herald was accordingly sent away without an audience, and ordered to be beyond the frontier that same day; in future, if those who sent him had a proposition to make they must retire to their own territory before they dispatched embassies to Athens. An escort was sent with Melesippus to prevent his holding communication with any one. When he reached the frontier and was just going to be dismissed, he departed with these words: ‘This day will be the beginning of great misfortunes to the Hellenes.’ As soon as he arrived at the camp, and Archidamus learnt that the Athenians had still no thoughts of submitting, he at length began his march, and advanced with his army into their territory. Meanwhile the Boeotians, sending their contingent and cavalry to join the Peloponnesian expedition, went to Plataea with the remainder and laid waste the country.