History of the Peloponnesian War

Again, they drove out the Eordians from what is now called Eordia, (of whom the greater part perished, though a small division of them is settled about Physca,) as also the Almopians from Almopia.

Those Macedonians, moreover, subdued [the places belonging to] the other tribes, which they still continue to hold, such as Anthemus, Crestonia, Bisaltia, and much of the country that belonged to the original Macedonians. The whole of it is called Macedonia, and Perdiccas, son of Alexander, was king of the country when Sitalces invaded it.

These Macedonians, then, on the approach of so large an enemy, not being able to offer any resistance, betook themselves to their strong-holds and fortifications, such as they had in the country. These, however, were not numerous;

but it was at a later period that Archelaus son of Perdiccas, when he came to the throne, built those which are now in the country, and cut straight roads, and made other arrangements, both for its having horses and arms for war, and resources of all other kinds, better than had been provided by all the rest of the kings, eight in number, who had preceded him.