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The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with approximately 1.3 billion baptised Catholics worldwide, as of 2016.[4] As one of the oldest religious institutions in the world, it has played a prominent role in the history and development of Western civilisation.[5] The church is headed by the Bishop of Rome, known as the Pope. Its central administration, the Holy See, is in the Vatican City, an enclave within Rome, Italy.

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