Pope Francis waves to faithful as he arrives for his weekly general audience in St. Peter's Square at the Vatican on Wednesday. Riccardo De Luca/AP hide caption

itoggle caption Riccardo De Luca/AP

Monsignor Daniel Gallagher, a Latin expert at the Vatican, says people from all walks of life are following the pope's Twitter feed in Latin. Sylvia Poggioli/NPR hide caption

itoggle caption Sylvia Poggioli/NPR

The newly elected Pope Francis appears on the main balcony of St Peter's Basilica. His name was chosen after St. Francis of Assisi, the Vatican says. L'Osservatore Romano/Getty Images hide caption

itoggle caption L'Osservatore Romano/Getty Images