Popes
List of the Popes (NewAdvent)
A complete list of the Popes.
www.newadvent.org/cathen/12272b.htm
Papal Election (NewAdvent)
The method of electing the pope is explained here.
www.newadvent.org/cathen/11456a.htm
Papal Infallibility (NewAdvent)
NewAdvent's explanation of papal infallibility.
www.newadvent.org/cathen/07790a.htm
The Pope (NewAdvent)
NewAdvent's explanation of the position of pope.
www.newadvent.org/cathen/12260a.htm
Wikipedia - History of the Papacy
The History of the Papacy spans over 2,000 years from the time of Saint Peter to present day.
en.wikipedia.org/wiki/History_of_the_Papacy