Saint John I became the Catholic Pope.
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Joseph Ratzinger is inaugurated as Pope Benedict XVI.
Mercurius became Pope John II, making him the first pope to change their name after attaining popehood.
Pope Innocent III brought together the council for the Fourth Council of the Lateran, which was held at the Lateran Palace in Rome, Italy.
A picture of Pope John Paul II was torn up by the Irish singer Sinead O'Connor on Saturday Night Live.
Pope Francis made history when he became the first pope to visit Iraq.
