Bachelors at Oxford studied the arts of grammar, rhetoric, and logic, and then music, arithmetic, geometry, and astronomy, until they mastered their discipline and therefore were authorized to teach it. Teaching would then provide an income sufficient to support a wife. The master of arts was analogous to the master craftsman of a guild. From 1190, the civil law was studied, and shortly thereafter, canon law. Later came the study of medicine. The use of paper supplemented the use of parchment for writing. Irregular edged paper was made from linen, cotton, straw, and/or wood beaten to a pulp and then spread out over a wire mesh to dry. Theologicians taught that the universe was made for the sake and service of man, so man was placed at the center of the universe. Man was made for the sake and service of God. Every freeman holding land of a lord gave homage and fealty to him, swearing to bear him faith of the tenement held and to preserve his earthly honor in all things, saving the faith owed to the king. Homage was done for lands, for free tenements [including meadows, pastures, woods, and wastes], for services, and for rents precisely fixed in money or in kind. Homage could be done to any free person, male or female, adult or minor, cleric or layman. A man could do several homages to different lords for different fees, but there had to be a chief homage to that lord of whom he held his chief tenement. Homage was not due for dower, from the husband of a woman to whom a tenement was given as a marriage portion, for a fee given in free alms, or until the third heir, either for free maritagium [a marriage portion of land which is given with a daughter in marriage, that is not bound to service and passes to the daughter's heirs in whatever way had been stipulated by her family when the grant was made] or for the fee of younger sisters holding of the eldest. All fiefs to be inherited by the eldest son had to be intact. Every lord could exact fealty from his servants. In this era, the English national race and character was formed. Only a few barons still had lands in Normandy. Stories of good King Arthur were popular and set ideals for behavior and justice in an otherwise barbaric age where force was supreme. His last battle in which he lay wounded and told a kinsman to rule in his place and uphold his laws was written in poem ("Layamon's Brut"). Romantic stories were written and read in English. The custom of "bundling" was started by ladies with their knights, who would lie together in bed without undressing and with one in a sack the top of which was tied around his neck, as part of a romantic courtship. Wealthy men often gave their daughters dowries in case they were widowed. This might be matched by a marriage settlement by a prospective husband.