On 24 April 1870, the dogmatic constitution on the Catholic faith Dei Filius was adopted unanimously. The draft presented to the Council on 8 March drew no serious criticism, but a group of 35 English-speaking bishops, who feared that the opening phrase of the first chapter, "Sancta romana catholica Ecclesia" (the holy Roman Catholic Church), might be construed as favouring the Anglican Branch Theory, later succeeded in having an additional adjective inserted, so that the final text read: "Sancta catholica apostolica romana Ecclesia" (the holy Catholic Apostolic Roman Church). The constitution thus set forth the teaching of the "Holy Catholic Apostolic Roman Church" on God, revelation and faith.
Read more about this topic: First Vatican Council