Histories

In this part of the mountain one thousand armed men of the Phocians were on watch, as I have already shown, defending their own country and guarding the path. The lower pass was held by those I have mentioned, but the Phocians had voluntarily promised Leonidas to guard the path over the mountain.

The Phocians learned in the following way that the Persians had climbed up: they had ascended without the Phocians' notice because the mountain was entirely covered with oak trees. Although there was no wind, a great noise arose like leaves being trodden underfoot. The Phocians jumped up and began to put on their weapons, and in a moment the barbarians were there.