Four nuns, including two Palestinians, are the Roman Catholic Church's newest saints. Pope Francis canonized them Sunday at a Mass at the Vatican. Two of the nuns - Mariam Bawardy and Marie Alphonsine Ghattas - lived in what was 19th-century Palestine.
Pope Canonizes 4 Nuns, Including 2 Palestinian Nuns

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Palestinian President Mahmoud Abbas (front row, on L) applauds during a ceremony for the canonization of four nuns at Saint Peter's square in the Vatican City, May 17, 2015.

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Pope Francis greets faithful in St. Peter's Square at the Vatican, May 17, 2015.

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Pope Francis greets Palestinian President Mahmoud Abbas following a canonization ceremony in St. Peter's Square at the Vatican, May 17, 2015.

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Pope Francis greets a child in St. Peter's Square at the Vatican, May 17, 2015.