The Catholic Church is working on canonizing both Pope John Paul II and Pope John XXIII. Here's more about the process and their lives.
Canonization is the way the Catholic Church makes a deceased person a saint.
The process has two parts:
How Does Someone Become a Saint?
Beatification and Canonization from The Catholic Encyclopedia
Frequently Asked Questions about Saints
The Pontificate of John Paul II
Pope John Paul II - Holy See Press
John Paul II: The Millennial Pope
Pope John XXIII
Pope John XXIII - Holy See Press
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