Also, which Catholic apostle associated with finding the Hungarian Catholic Church rite? Thanks to all who respond!
Hungary’s Greek Catholics, were originally concentrated in what is now northeastern Hungary. This region was historically inhabited by Orthodox Christians from the Carpathian Mountains (Ruthenians and Romanians). Serbs fleeing the Turkish advance arrived later in what was then Hungary, but most stayed in the area that is now part of Serbia. Later still, when the Turks were driven back from Vienna in 1683 and from Buda and central Hungary in 1686, Ruthenians and Slovaks settled in the abandoned lands of Hungary. They were cared for by the Ruthenian Byzantine Rite Eparchy of Mukacheve (Hungarian: Munkács). In the 18th century many Hungarian Protestants joined the Roman Catholic Church, adopting the Byzantine Rite rather than the Latin.
http://en.wikipedia.org/wiki/Hungarian_Greek_Catholic_Church
A rite represents an ecclesiastical tradition about how the sacraments are to be celebrated. As the early Church grew and spread, it celebrated the sacraments as would be best understood and received in the context of individual cultures, without ever changing their essential form and matter. The early Church sought to evangelize in the major cultural centers of the first centuries A.D. These centers were Rome, Antioch (Syria), and Alexandria (Egypt). All the rites in use today evolved from the liturgical practices and ecclesiastical organization used by the churches in these cities.
http://www.mncuf.org/rites.htm