Mother Teresa and The Pope met in Calcutta, where they both fed the sick.
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The first Vatican Council, also known as Vatican I, decrees the doctrine of Papal infallibility.
Mercurius became Pope John II, making him the first pope to change their name after attaining popehood.
Pope Gregory XII was appointed head of the Catholic Church by a conclave of 15 cardinals in Rome.
Mother Teresa contracted malaria and spent one week in hospital in New Delhi, India.
Juan María Fernández y Krohn tried to assassinate Pope John Paul II with a bayonet.
