Ukrainian Greek Catholic Church, largest of the Eastern Catholic (also known as Eastern rite or Greek Catholic) churches, in communion with Rome since the Union of Brest-Litovsk in 1596. Learn more about the history and persecution of the Ukrainian Greek
For example, it was only in the twentieth century that the Orthodox in the Ukraine first replaced Church Slavonic with Ukrainian in the liturgy and that Uniates (Greek or Ukrainian Catholics) introduced mandatory celibacy in some dioceses. The conservatism of the churches makes it possible to ...