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Pope Francis: Argentina's Cardinal Jorge Mario Bergoglio is new Catholic leader

AFP - Getty Images

Argentina's Jorge Bergoglio (L), elected Pope Francis I, appearing at the window of St Peter's Basilica's balcony after being elected the 266th pope of the Roman Catholic Church on Wednesday, March 13, 2013 at the Vatican. Read the full story.

Americans were among the tens of thousands who gathered to witness the unveiling of Pope Francis.

Dmitry Lovetsky / AP

See more images from the Vatican.