The earliest records of a formal devotional following for Saint Joseph date to the year 800 and reference to him as Nutritor Domini (educator/guardian of the Lord). Together with the Blessed Virgin Mary and the Child Jesus, Joseph is one of the three members of the Holy Family. Of all the saints in Christendom, the only ones of whom we possess no ex ossibus (from the bone) relics are the Blessed Virgin Mary and her husband Saint Joseph. This lack of bodily relics is attributed to the Assumption of the Virgin Mary into heaven body and soul, which is one of the great Marian Dogmas of the Church. The same reasoning is applied to lack of bodily relics of Saint Joseph, Virgin-Father of Christ and Chaste Spouse of Mary. Saint Joseph is the patron saint of a number of cities, regions and countries, among them the Americas, Canada, China, Croatia, Mexico, Korea, Austria, Belgium, Peru, the Philippines and Vietnam, as well as of families, fathers, expectant mothers (pregnant women), travelers, immigrants, house sellers and buyers, craftsmen, engineers, and working people in general.