Lay education arose in this period in three ways. In the first place it came through the education and training of those intended for knighthood, as such produced standards of deportment that impressed themselves upon the upper classes in such a way that as civilization advanced and means of intercourse widened there came a need of systematic instruction so that there arose the great public schools of England and similar schools upon the continent. In the second place the growing importance of the cities in industry and commerce led to the establishment of schools for the training of the city youth, so that the burgher school was produced. Under the guild system there arose a kind of industrial education and the need of means of instruction of the young of the guild members so that guild schools were formed. During the period following the fall of Rome, the culture and learning of Greece and Rome were almost entirely lost to central and western Europe. Only here and there was a little retained, usually in some monastery where some of the old manuscripts were stored away. Yet learning was never entirely lost, and when the Crusades arose and the people of the West came in contact with the old Greek culture in eastern Europe and with the scientific learning of the Moslems, and who brought learning again into Spain, they brought back with them a widening interest in learning. Too, as commerce grew and wealth increased there became more leisure for learning and there grew up a desire for further knowledge and, so to the education as discussed in the foregoing paragraphs there was added a still higher form, that of the university. The university arose during the Middle Ages. In its beginning it came neither directly from church or state. The awakening of a scientific spirit and the spreading abroad of discussion through scholasticism caused to arise centers around which learned men gathered about them the young men of the times. The earliest of these were the universities of Bologna and Salerno in the twelfth century. The former was for the study of law and the latter for medicine. The University of Paris originated near the same time and in it arose the four faculties--theology, philosophy, law, medicine--which are still extant to-day in the universities. Oxford, Cambridge, Vienna, and many other universities were formed during this period.