ɡɹˈiːk ænd lˈætɪn sˈoːɹsᵻz lˈaɪk kˈɜːɾɪəs ɹˈuːfəs, tˈɔːkɪŋ ʌv ðɪs pˈiəɹɪəd, tˈɛl ðæt swˈɑːt ænd ɡændhˈɑːɹɹə wɜː nˌɑːt kəntɹˈoʊld baɪ ɐtʃˈiːmənˌɪdz ˌɛnɪmˈoːɹ fɹʌm ɚɹˈaʊnd θɹˈiːhˈʌndɹɪd fˈɪfti bˌiːsˈiː, ænd ðˌæɾə tɹˈaɪb nˈoʊn æz ɐsˈeɪknɔɪ ɹˈuːld ðə ɹˈiːdʒən ˈælaɪd tʊ ˈʌðɚɹ ˈɪndiən tɹˈaɪbz.
Greek and Latin sources like Curtius Rufus, talking of this period, tell that Swat and Gandhara were not controlled by Achaemenids anymore (from around 350 BC), and that a tribe known as Assakenoi ruled the region allied to other Indian tribes.