Not the only thing the Vatican has done-
1) Added 'positions' like pope and cardinal which are never mentioned in the New Testament.
2) Kept Virgin Mary as well, a virgin, meaning that she and Joseph never had sex at all even though they were married in the eyes of God. Not once in Scripture did God tell a legit married couple to not have sex.
3) Putting said Mary on the same level as Jesus. . .and also putting the pope on the same as Jesus.
4) Letting erroneous teachings to continue like Mary Magdeline being the adulteress that was almost stoned(the adulteress is unnamed) instead of being the woman who was demon possessed by Legion.
5) Not permitting priests to marry even though Hebrew/Jewish Priests and very early Pastors did marry.
6) Pushing the Purgatory false teaching.