Query: When was the Roman Catholic Archdiocese of Montevideo created?
Context: The religion with most followers in Montevideo is Roman Catholicism and has been so since the foundation of the city. The Roman Catholic Archdiocese of Montevideo was created as the Apostolic Vicariate of Montevideo in 1830. The vicariate was promoted to the Diocese of Montevideo on 13 July 1878.