The Glagolitic alphabet was the initial script of the liturgical language Old Church Slavonic and became, together with the Greek uncial script, the basis of the Cyrillic script.
ðə ɡlˌæɡəlˈɪɾɪk ˈælfəbˌɛt wʌzðɪ ɪnˈɪʃəl skɹˈɪpt ʌvðə lɪtˈɜːdʒɪkəl lˈæŋɡwɪdʒ ˈoʊld tʃˈɜːtʃ slævˈɑːnɪk ænd bɪkˈeɪm, təɡˌɛðɚ wɪððə ɡɹˈiːk ʌnsˈaɪəl skɹˈɪpt, ðə bˈeɪsɪs ʌvðə sɪɹˈɪlɪk skɹˈɪpt.