dˈʊɹɹɪŋ ðə mjˌʊɹɹəmˈætʃi pˈiəɹɪəd wˈʌn θˈaʊzənd θɹˈiːhˈʌndɹɪd θˈɜːɾi θɹˈiː wˈʌn θˈaʊzənd fˈaɪvhˈʌndɹɪd sˈɪksti ˈeɪt, ðə fˈɔːɹm wʌz ɐdˈɑːptᵻd ɔːɹ ɹᵻvˈaɪvd baɪ ðə dʒˈɛnɚɹəl sˈæmjʊɹɹˌaɪ klˈæs fɔːɹ ˌɛdʒuːkˈeɪʃənəl pˈɜːpəsᵻz.
During the Muromachi period (1333–1568), the form was adopted or revived by the general samurai class for educational purposes.