The number of Uniat Copts is nominal.
The popes, then, or at least the more politic of them, have been content to lay down as the condition of reunion no more than the acceptance of the distinctive dogmas of the Roman Catholic Church, especially the supremacy and infallibility of the pope; the ritus of the Uniat Oriental Churches - liturgies and liturgical languages, ecclesiastical law and discipline, marriage of priests, beards and costume, the monastic system of St Basil - they have been content for the most part to leave untouched.
This principle has even been carried to the extent of recognizing several bishops having jurisdiction over the adherents of various rites in the same see; thus there are three uniat patriarchs of Antioch (GraecoMelchite, Maronite and Syrian).
Their work has been fourfold: (i) they have brought out editions of important patristic works, some Armenian, others translated into Armenian from Greek and Syriac originals no longer extant; (2) they print and circulate Armenian literature among the Armenians, and thereby exercise a powerful educational influence; (3) they carry on schools both in Europe and Asia, in which Uniat Armenian boys receive a good secondary education; (4) they work as Uniat missioners in Armenia.
But according to a story reproduced in the New Uniat Anthology of Arcudius, and mentioned in Basil's Monologue, Christopher was originally a hideous man-eating ogre, with a dog's face, and only received his human semblance, with his Christian name, at baptism.
The liturgical language of the Uniat Slav Churches is Old Slavonic, and, so far as their rite is concerned, they differ from the Orthodox Slav Churches only in using the Glagolitic instead of the Cyrillic alphabet.
Jesuit missionaries after the Reformation stirred up schisms in some parts of the Eastern Church, and in Austria, Poland and elsewhere large numbers of Orthodox Christians submitted, either willingly or under compulsion to the see of Rome (see Roman Catholic Church, section Uniat Oriental Churches).