People gather in St. Peter's Square at the Vatican on Sunday for canonisation of Carlo Acutis, a British-born Italian boy who became the first millennial to be made a Catholic saint.

Pope Leo XIV declared a 15-year-old computer whiz the Catholic Church’s first millennial saint Sunday, giving the next generation of Catholics a relatable role model who used technology to spread the faith and earn the nickname “God’s influencer.”

Leo canonized Carlo Acutis, who died in 2006, during an open-air Mass in St. Peter’s Square before an estimated 80,000 people, many of them millennials and couples with young children. During the first saint-making Mass of his pontificate, Leo also canonized another popular Italian figure who died young, Pier Giorgio Frassati.

Leo said both men created “masterpiec

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