Carlo Acutis, a British-born Italian teenager, will become the first millennial saint this Sunday. Known as “God’s Influencer,” he spread the Catholic faith online long before social media became a part of everyday life. Thousands of pilgrims are expected to witness the historic canonization at St. Peter’s Square in the Vatican. A Young Life Devoted to Faith Carlo was born in London in 1991 to an Italian mother and a father of English-Italian descent.