Pope Francis was officially inaugurated Tuesday as the Catholic Church's 266th pope, before a crowd of thousands bathed in sunlight.
Thousands gathered in St. Peter's Square to witness the inauguration of Pope Francis, who rode to St. Peter's in an open air vehicle.
Have you ever wondered where the tradition of putting up a tree for Christmas came from? Or why we light a menorah for Hanukkah? Find out about the interesting origins of many holiday traditions right here.