History of the Peloponnesian War

After these came presently into the Argive league the Corinthians and the Chalcideans upon Thrace. The Boeotians also and Megareans threatened as much; but because they thought the Argive democracy would not be so commodious for them, who were governed according to the government of the Lacedaemonians, by oligarchy, they stirred no further in it.

About the same time of this summer the Athenians expugned Scione, slew all that were within it at man's estate, made slaves of the women and children, and gave their territory to the Plataeans. They also replanted the Delians in Delos, both in consideration of the defeats they had received after their expulsion, and also because the oracle at Delphi had commanded it.

The Phoceans and Locrians also began a war at that time against each other.

And the Corinthians and Argives, being now league, went to Tegea to cause it to revolt from the Lacedaemonians, conceiving it to be an important piece [of Peloponnesus], and making account, if they gained it to their side, they should easily obtain the whole.

But when the Tegeates refused to become enemies to the Lacedaemonians, the Corinthians, who till then had been very forward, grew less violent and were afraid that no more of the rest would come in.