John Paul II was the Polish Pope, he was the first Non-Italian pope for very many centuries. John Paul II reigned a long time and under his rule doctrinal modernisation in the Roman Catholic Church was strongly resisted.
There were many Priest Child Molestation Scandals brewing during the reign of John Paul II but most didn't come to light till after his death.
There is a good and a a bad side to Christianity, see the category page