context: The Basilica of San Giovanni in Laterano () is the cathedral of the Pope, the Roman parish diocese and the diocesan archdiocese. Often referred to simply as Laterano Cathedral . The official name of the cathedral is Laterano's most holy Savior, St. John the Baptist and St. John the Gospel. It is the oldest and first of the Christian churches in Rome and is among the Catholics the mother of all the churches of the world. The front facade is engraved with the words Christo Salvatore and is dedicated to the Most Holy Savior Christ on behalf of all the Patriarchal Cathedrals. The Cathedral of the Episcopal Episcopal Church in Rome with the Cathedra Romana, which is superior to any other cathedral in the Roman Catholic Church, including the Vatican's St. Peter's Basilica.
question: What is the oldest church in Rome?
answers.text: Basilica of San Giovanni in Laterano