considering with themselves that they were not acting rightly, changed
their minds and departed; and after that Demaratos the son of Ariston
did the same, who was king of the Spartans as well as Cleomenes,
though he had joined with him in leading the army out from Lacedemon
and had not been before this at variance with Cleomenes. In
consequence of this dissension a law was laid down at Sparta that it
should not be permitted, when an army went out, that both the kings
should go with it, for up to this time both used to go with it, and
that as one of the kings was set free from service, so one of the sons
of Tyndareus[64] also should be left behind; for before this time both
of these two were called upon by them for help and went with the
armies. 76. At this time then in Eleusis the rest of the allies,
seeing that the kings of the Lacedemonians did not agree and also that
the Corinthians had deserted their place in the ranks, themselves too
departed and got them away quickly. And this was the fourth time that
the Dorians had come to Attica, twice having invaded it to make war
against it, and twice to help the mass of the Athenian people,--first
when they at the same time colonised Megara (this expedition may
rightly be designated as taking place when Codros was king of the
Athenians), for the second and third times when they came making
expeditions from Sparta to drive out the sons of Peisistratos, and
fourthly on this occasion, when Cleomenes at the head of the
Peloponnesians invaded Eleusis: thus the Dorians invaded Athens then
for the fourth time.

77. This army then having been ingloriously broken up, the Athenians
after that, desiring to avenge themselves, made expedition first
against the Chalkidians; and the Bœotians came to the Euripos to help
the Chalkidians. The Athenians, therefore, seeing those who had come
to help,[64a] resolved first to attack the Bœotians before the