Francis isn't the first Pope to win TIME's Person of the Year | The Week
Benedict XVI is first Pope to resign in six centuries - and only the fifth ever to stand down | The Independent | The Independent
Pope Francis - Age, Quotes & Facts - Biography
List of popes - Wikipedia
History of the papacy - Wikipedia
Pope Benedict XVI isn't the first: All the Popes who have retired – Film Daily
Who was the first pope - DailyHistory.org
Pope - Wikipedia
Pope Emeritus Benedict XVI Becomes Oldest Pope In History
Papacy | Definition, History, Popes, & Facts | Britannica
Pope Francis Set To Become The First Pope In History To Visit Bahrain - Scoop Empire
Pope - Wikipedia
Saint Peter as the First Pope | Catalan | The Metropolitan Museum of Art
What you don't know about the first Pope | CNN
BBC World Service - Witness History, The first Pope to visit Africa
Papal supremacy - Wikiwand
10 Grisly Papal Deaths - HISTORY
Who was the first pope to be photographed?—Aleteia
History of the papacy - Wikipedia
Was Saint Peter the First Pope? | Christian Research Institute
Pope Urban II Orders First Crusade - HISTORY
Pope Francis rescripts history - GulfToday
Pope Photos: See Every Papal Trip to the U.S. in History | Time
Aerial's Torch of Salvation: Was Peter Really was the First Pope of the Catholic Church?
