New Pope Installed with Formal Mass

Crowds fill Saint Peter's Square for the inaugural mass of Pope Francis at the Vatican, Mar. 19, 2013.

The pallium is fitted on Pope Francis during his inaugural mass in Saint Peter's Square at the Vatican, Mar. 19, 2013.

The Fisherman's Ring is placed on the finger of Pope Francis by Cardinal Angelo Sodano (R), Dean of the College of Cardinals during his inaugural mass at the Vatican, Mar. 19, 2013.

Pope Francis, center, celebrates his inaugural Mass in St. Peter's Square at the Vatican, Mar. 19, 2013.

The papal mitre is placed on the head of Pope Francis during his inaugural mass in Saint Peter's Square at the Vatican, Mar. 19, 2013.

Pope Francis has officially begun his ministry as the 266th pope, receiving the ring symbolizing the papacy and a wool stole symbolizing his role as shepherd of his 1.2-billion strong flock, Mar. 19, 2013.

Pope Francis celebrates his inaugural Mass in St. Peter's Square at the Vatican, Mar. 19, 2013.

Pope Francis reaches out for a child in St. Peter's Square at the Vatican, Mar. 19, 2013.

Faithful watch the inaugural mass of Pope Francis on a giant screen next to the Metropolitan Cathedral in Buenos Aires, Mar. 19, 2013.