VATICAN CITY (AP) — Pope Leo XIV vowed Sunday to work for unity in a polarized Catholic Church and world, as history’s first ...

Pope Leo XIV, the first U.S.-born pontiff, began his papacy with a richly-symbolic inaugural Mass, celebrated at the Vatican before a crowd of 150,00 people.

The Mass in St Peter's Square marks the start of the pontificate of the first American to lead the Roman Catholic Church.