Pope Leo XIV celebrated his first Mass in the Sistine Chapel where he was elected less than 24 hours earlier, warning of the dangers caused by a lack of faith and hoping the Catholic Church could be a beacon lighting the world's "dark nights".

R obert Francis Prevost, now known as Pope Leo XIV, made history on Thursday, May 8, when he was elected as the first American Pope. The Chicago native, who has spent many years serving as a missionary in Peru, took to the balcony of St. Peter’s Basilica and addressed the cheering crowd, speaking in Spanish and Italian.