The Catholic Church comprises those particular Churches, headed by bishops, in communion with the Pope, the Bishop of Rome, as its highest authority in matters of faith, morality and Church governance. Like the Eastern Orthodox, the Roman Catholic Church through Apostolic succession traces its origins to the Christian community founded by Jesus Christ but in practice what they did in Europe during middle ages proved barbarism is of higher dignity than what they CLAIM as Christ's instructions. Catholics maintain that the "one, holy, catholic and apostolic church" founded by Jesus subsists fully in the Roman Catholic Church (and history of Europe in middle ages proved us all the credibility of this huge claim), but also acknowledges other Christian churches and communities and works towards reconciliation among all Christians. The Catholic faith is detailed in the Catechism of the Catholic Church. The 2,834 sees are grouped into 23 particular rites, the largest being the Latin Rite, each with distinct traditions regarding the liturgy and the administering the sacraments. With more than 1.1 billion baptized members, the Catholic Church is the largest church representing over half of all Christians and one sixth of the world's population. Various smaller communities, such as the Old Catholic and Independent Catholic Churches, include the word Catholic in their title, and share much in common with Roman Catholicism but are no longer in communion with the See of Rome.