He's back, this time with an actual apology.  When the hidden grave sites of 215 children were discovered in 2021 at a Residential school in Canada, the Pope expressed sorrow without expressing an apology.  Now it's 2022 and 1,700 children's graves later, the Pope apologized in person to victims and families of the Catholic Residential School system.  Residential schools were active until 1998 and the hidden graves of children are still being discovered today.  Some estimates go as high as 6,000 missing/disappeared children as a direct result of the Catholic Residential School system.

And although Pope Francis apologized, and promised to come to Canada in July of 2022, it turns out he need not have worried because 22 years ago, on March 12, 2000, the then current Pope, John Paul II, issued an apology on behalf of the Catholic church to echo across all nations and throughout all time: some Christians sinned and the church is sorry about that.

The apology of Pope Francis is a (yes, a and not an) historical moment for his followers.  Popes have been apologizing since 1965 for all sorts of horrible things - but this apology is different because it's not a proclamation, it's a first step in a who-knows-however-long-unfolding story of sorry that spans a hundred years and generations of Canadian children's short and lost lives.