When Pope John Paul XXII and John Paul II enter the sainthood on Sunday, millions of devoted Catholics are expected to watch the ceremony in Rome, with many more tuning in on TV to experience it. But, the process leading up to this moment is lengthy and arduous. Kenneth Woodward, author of Making Saints: How The Catholic Church Determines Who Becomes A Saint, Who Doesn’t, And Why, details how it all comes together, and explains why this moment is historical. Photo: Flickr/Cris Pierry