The Histories · 7.124

Now while his naval force was encamped about the river Axios an the city of Therma and the cities which lie between these two, waiting for the coming of the king, Xerxes and the land-army were proceeding from Acanthos, cutting through the middle by the shortest way with a view to reaching Therma: and he was proceeding through Paionia and Crestonia to the river Cheidoros, which beginning from the land of the Crestonians, runs through the region of Mygdonia and comes out alongside of the marsh which is by the river Axios.

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
Source edition
Passage preview. Read in context for the complete text, notes and references.