This Sunday, for the first time in history, two popes will be canonized on the very same day. Millions of people are expected to go to Vatican City for the momentous occasion.
Pope John XXIII was the oldest pope elected since 1670 and is most revered for convening the Second Vatican Council in 1962. Pope John Paul II was the longest serving pope of the past century and is credited with igniting the end of Communism. He will hold the record for the fastest saint to be canonized in the history of the Catholic Church.