This nineteen-year period was called by the Greeks as the ‘year of Meton', the time period in which the stars returned to their initial positions.
ðɪs nˈaɪntiːnjˈɪɹ pˈiəɹɪəd wʌz kˈɔːld baɪ ðə ɡɹˈiːks æz ðə jˈɪɹ ʌv mˈɛtən, ðə tˈaɪm pˈiəɹɪəd ɪnwˌɪtʃ ðə stˈɑːɹz ɹᵻtˈɜːnd tə ðɛɹ ɪnˈɪʃəl pəzˈɪʃənz.