Basically, and officially, the early first century Catholic and the one that exists today teach the same truths...they never change. While the officiaal name Catholic did not exist from the beginning, you weren't Boatbums until 9 months after you existed....and the Christian communities in those days became known a Catholic and have been so for 2,017 years....
There you go with your "funny" math again!
No, you really can't claim that the "Catholic" church today is the same as the catholic churches from the start. There are many, many things that are different both doctrinally as well as practices. I know that this so-called history is what the Roman Catholic church likes to cram down everyone's throats as the truth but even though some of the doctrines are unchanged, many have been and many have been ADDED that were not held as Apostolic teaching (i.e., Pope; Mariology; Purgatory; Indulgences; prayer to/for the dead, etc.).
I already know you will dispute this but you will have nothing to prove what I said is wrong. We know what the Apostolic teachings are because they wrote them down in Scripture. God ensured that we would have a more sure word than man's opinions, interpretations, myths, legends and mysterious "oral" traditions.
Lol in what year was Jesus crucified? some of your assertions are hilarious