Res Gestae

From there we quickly made our way to the Euphrates river, planning to cross to the farther bank by a boat which long continued custom had kept in that vicinity for the transport of men and animals.

But lo! we saw afar off a scattered band of Romans with cavalry standards, pursued by a great force of Persians; and we could not understand how they appeared so suddenly behind us as we went along.

Judging from this instance, we believe that the famous sons of earth did not come forth from the bosom of the land, but were born with extraordinary swiftness —those so-called sparti,[*](σπαρτοί (from σπείρω, sow) was a name applied to the Thebans, because of the fable of the dragon’s teeth sown by Cadmus. The Athenians, who claimed to be earthborn, were called αὐτόχθονες. ) who, because they were seen unexpectedly in sundry places, were thought to have sprung from the earth, since antiquity gave the matter a fabulous origin.