History of the Peloponnesian War

When the Athenians had thus gotten the command by the confederates' own accord for the hatred they bare to Pausanias, they then set down an order which cities should contribute money for this war against the barbarians, and which galleys. For they pretended to repair the injuries they had suffered by laying waste the territories of the king.

And then first came up amongst the Athenians the office of treasurers of Greece, who were receivers of the tribute, for so they called this money contributed. And the first tribute that was taxed came to four hundred and sixty talents. The treasury was at Delos, and their meetings were kept there in the temple.

Now using their authority at first in such manner as that the confederates lived under their own laws and were admitted to common council, by [the] war and administration of the common affairs of Greece from the Persian war to this, what against the barbarians, what against their own innovating confederates, and what against such of the Peloponnesians as chanced always in every war to fall in, they effected those great matters following.

Which also I have therefore written both because this place hath been pretermitted by all that have written before me (for they have either compiled the Grecian acts before the invasion of the Persians or that invasion only, of which number is Hellanicus, who hath also touched them in his Attic history, but briefly and without exact mention of the times), and also because they carry with them a demonstration of how the Athenian empire grew up.