@Crumbly WriterCW,
I was just a wondering about this. What time frame are you talking about, and in how wide a context are you talking about?
It does make a difference as what most people call the Catholic Church today is the Roman Catholic Church in order to differentiate it from the Orthodox Churches and the Protestant Churches. Go back to before the split off of the first Protestant Churches and you have what they used to call the Holy Catholic Church and the Orthodox Churches.
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Also, checking shows that the the faith is often referred to Catholicism and not Catholic faith.
Then you have:
https://en.wikipedia.org/wiki/Roman_Catholic_(term)
quote
Roman Catholic is a term sometimes used to differentiate members of the Catholic Church in full communion with the pope in Rome from other Christians who also self-identify as "Catholic".
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and
https://en.wikipedia.org/wiki/Catholic_(term)
quote
The word Catholic (usually written with uppercase C in English when referring to religious matters; derived via Late Latin catholicus, from the Greek adjective καθολικός (katholikos), meaning "universal")[3][4] comes from the Greek phrase καθόλου (katholou), meaning "on the whole", "according to the whole" or "in general", and is a combination of the Greek words κατά meaning "about" and ὅλος meaning "whole".[5][6] The first use of "Catholic" was by the church father Saint Ignatius of Antioch in his Letter to the Smyrnaeans (circa 110 AD).[7] In the context of Christian ecclesiology, it has a rich history and several usages.
The word in English can mean either "of the Catholic faith" or "relating to the historic doctrine and practice of the Western Church".[note 1][8] "Catholicos", the title used for the head of some churches in Eastern Christian traditions, is derived from the same linguistic origin.
The term has been incorporated into the name of the largest Christian communion, the Catholic Church (also called the Roman Catholic Church). All of the three main branches of Christianity in the East (Eastern Orthodox Church, Oriental Orthodox Church and Church of the East) had always identified themselves as Catholic in accordance with Apostolic traditions and the Nicene Creed. Anglicans, Lutherans, and some Methodists also believe that their churches are "Catholic" in the sense that they too are in continuity with the original universal church founded by the Apostles. However, each church defines the scope of the "Catholic Church" differently. For instance, the Roman Catholic, Eastern Orthodox, Oriental Orthodox churches, and Church of the East, each maintain that their own denomination is identical with the original universal church, from which all other denominations broke away.
Distinguishing beliefs of Catholicity, the beliefs of most Christians who call themselves "Catholic", include the episcopal polity, that bishops are considered the highest order of ministers within the Christian religion,[10] as well as the Nicene Creed of AD 381. In particular, along with unity, sanctity, and apostolicity, catholicity is considered one of Four Marks of the Church,[11] found in the line of the Nicene Creed: "I believe in one holy catholic and apostolic Church."
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