What has Christianity truly contributed to humanity

[Angrboda]

People at 30 know better than they did at 15. At 45 than at 30. At 60 then at 45. Generally speaking. That's how things generally work and so it's not surprising some things wrongly believed in the past are rightly believed no longer. However, killing babies through infanticide is regress, not progress. Regress to a pre-Christian Pagan Era, which the Divine Light of Christianity overcame and replaced with Beautiful Orphanages for Love of Precious Children.

So you believe in a progressive revelation then, that what the Catholic church says today may be deemed wrong by the Catholic church at some future date?