Hi, germys9!
You are right. As Catholics, we are all, in fact, part of the *One, Holy, Catholic and Apostolic Church. *So, how’d we end up with 23 separate “Churches?” Perhaps this concept becomes a bit clearer when we turn to Scripture.
When the Apostles first set out to spread the Word throughout the world, they naturally went in different directions. As they went, they would establish “Churches,” at central points, each Church with its own leader, but all sharing the same basis in faith. You can, in fact, find many Scriptural references to the “Church at Antioch” or the “Church at Alexandria” or wherever. These Churches and their leaders provided the cohesiveness for worship within their given geographic area. They would “interpret” the specifics of worship within their area in terms of the language and customs of that area, thus creating the various “rites” our Catholic Church enjoys today.
These Churches, as established by the Apostles, enjoyed a bit of autonomy since, because of the technology of the times, they were pretty much isolated from their counterparts - as long as the basic beliefs of the faith were adhered to, latitude was allowed with regard to ceremonials, etc. (i.e., “rites”).
The leader, or bishop, of each of these Churches was looked upon as the supreme authority within his geographic area of jurisdiction, with each bishop being equal to the others throughout the world, but with a special place of honor reserved for the Apostle Peter, the Bishop of the Church of Rome, as “first among equals” due to his having been selected by the Hand of Our Lord to lead His Church on earth.
The original “Churches” of the time of the Apostles has grown to the 23 that today make up our Catholic Church. Each of those 23 still has its own leadership or governing system, with the Pope, who is also the Bishop of Rome, still responsible for the activities of that Church, and still “first among equals” as the Pastor of all Catholics.
a pilgrim