In 316 BC, Persepolis was still the capital of Persia as a province of the great Macedonian Empire (see Diod. xix, 21 seq., 46; probably after Hieronymus of Cardia, who was living about 326). The city must have gradually declined in the course of time. The lower city at the foot of the imperial city might have survived for a longer time; but the ruins of the Achaemenids remained as a witness to its ancient glory. It is probable that the principal town of the country, or at least of the district, was always in this neighborhood.