The article from WMUR discusses the significance of the papal name "Leo" within the Catholic Church, highlighting that it has been chosen by 13 popes, starting with Pope Leo I in the 5th century. Pope Leo I, also known as Leo the Great, is particularly noted for his contributions to the church, including his role in defining the doctrine of Christ's nature and his efforts in maintaining the unity of the Western Roman Empire. The name Leo, meaning "lion" in Latin, symbolizes strength and courage, traits that have been associated with the popes who have taken this name. The article also touches on Pope Leo XIII, who is remembered for his social teachings and the encyclical "Rerum Novarum," which addressed the rights and duties of capital and labor. The choice of the name Leo by popes reflects a connection to these historical figures and their legacies.