This was officially sanctioned in 1248 by Pope Innocent IV, and only later did the Latin alphabet prevail. The Latin Rite prevailed over the Byzantine Rite rather early due to numerous interventions from the Holy See. There were numerous Roman Catholic synods held in Dalmatia in the 11th century, particularly after the East-West Schism of 1054, during the course of which the use of the Latin rite was run roughshod over the Divine Liturgy of St. John Chrysostom and the Divine Liturgy of St. Basil.