Celtic Rite, The

The term "Celtic Rite" is generally, but rather indefinitely, applied to the various rites in use in Great Britain, Ireland, perhaps in Brittany, and sporadically in Northern Spain, and in the monasteries which resulted from the Irish missions of St. Columbanus in France, Germany, Switzerland, and Italy, at a time when rites other than the then existing rite of Rome were used, wholly or partially, in those places.