 The general conclusion seems to be that, while the Irish were not above borrowing from other Western nations, they originated a good deal themselves, much of which eventually passed into that composite rite which is now known as Roman.This seems to be a rough statement of the opinion of the English Roman Catholic scholar Edmund Bishop, which involves the much larger question of the origin and development of all the Western rites.Copied at the Abbey of Bobbio from a manuscript compiled at the monastery of Bangor in County Down, during the time of Abbot Cronan (680-91), this so-called "antiphonary" is now in the Ambrosian Library at Milan.