Your own Catholic digest says infant baptism "Evolved over the years" - not at all practiced in the first century. So also your own Catholic Historian Thomas Bonkenkotter affirms that same point in his book 'A Concise History of the Catholic Church"
I don't study Catholic theology from Catholic Digest. And, while I've read Bonkenkotter' book, I never considered it to be a particularly trustworthy resource. The church teaches that infant baptism was practiced, both east and west, since time immemorial. IOW, it was a
received practice, not an instituted one. And, again virtually no controversy on it from early on.
Your own Catholic Encyclopedia admits that the present Sunday tradition also evolved over time.
Well, I have to admit that I haven't seen that in the original CE, which BTW, is not "my own", but rather an American production which is generally a good and reliable resource. Sunday rest and worship was another received practice, both east and west, with virtually no controversy, and not one that any church would cavalierly authorize on its own as anyone might assume based on Scripture alone. Jesus made some real and profound
changes, both within the believer and without. If Sunday, as a day of rest and worship, evolved at all it did so only in the
manner that it was observed, and not in regards to the day of the week, whereas Saturday observance was taken less seriously right away.
And since I don't think there even was a Catholic church in the first century as a denomination just as there was not the "Church of God" or the "World Wide Church of God" or the "Church of Christ" or the "Disciples of Christ" or the "Church of the Bretheren"... etc all those groups evolved out of what started out as the Christian Church in the first century.
Well, er, the Protestant denominations you named certainly couldn't lay serious, valid claim to possessing a historical connection to the beginning of Christianity. At any rate there
was a church, unified in teachings, established by Christ, often referred to as catholic, i.e. universal.