[Salvation]

There will be someone who does know that.

[Salvation]

Beginning Catholic: The Catholic Church's Origin [Ecumenical]
Beginning Catholic: Church Authority In Scripture [Ecumenical]
Beginning Catholic: Catholic Tradition: Life in the Spirit [Ecumenical]
Beginning Catholic: Infallibility: Keeping the Faith [Ecumenical]
Beginning Catholic: Moral Conscience: Catholic Teaching for a Strong Faith [Ecumenical]

Beginning Catholic: Catholic Morality: Life in Christ [Ecumenical]
Beginning Catholic: When Was The Bible Written? [Ecumenical]

[count-your-change]

You might go to the Catholic Encyclopedia under the subject “Muratorian Fragment”.
And Josephus’ work “Against Apion”.
Both available on line I believe.