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A general view shows the crowd during the Easter Sunday mass on April 16, 2017 at St Peter's square in Vatican. Christians around the world are marking the Holy Week, commemorating the crucifixion of Jesus Christ, leading up to his resurrection on Easter. / AFP PHOTO / Filippo MONTEFORTE        (Photo credit should read FILIPPO MONTEFORTE/AFP/Getty Images)
A general view shows the crowd during the Easter Sunday mass on April 16, 2017 at St Peter's square in Vatican. Christians around the world are marking the Holy Week, commemorating the crucifixion of Jesus Christ, leading up to his resurrection on Easter. / AFP PHOTO / Filippo MONTEFORTE        (Photo credit should read FILIPPO MONTEFORTE/AFP/Getty Images)

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    The outlaw origins of the Catholic Church

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The outlaw origins of the Catholic Church

Today, he's the spiritual leader for the world's 1.2 billion Catholics. But how did the Pope become one of the most powerful people on Earth? Learn more and watch the new CNN Original Series, "Pope: The Most Powerful Man in History," Sundays at 10 p.m. ET/PT.

The outlaw origins of the Catholic Church

Today, he's the spiritual leader for the world's 1.2 billion Catholics. But how did the Pope become one of the most powerful people on Earth? Learn more and watch the new CNN Original Series, "Pope: The Most Powerful Man in History," Sundays at 10 p.m. ET/PT.