Christianity
In the pre-Constantinian church (before the early 4th century), no distinctive liturgical dress was worn, and the Eucharist (Holy Communion) was celebrated by priests whose dress did not differ from that worn by lay members of their congregations. Present liturgical vestments in Roman Catholic and Orthodox churches derive from a common origin—i.e., the garments that were fashionable in the late Roman Empire. After the Schism of 1054, however, they each followed separate courses.