There also sprang up merchant and craft gilds, which afforded an industrial training through apprenticeship, and a more formal education through ‘gild schools.’ As the gilds merged with the town, these institutions became ‘burgher schools,’ and afforded a practical education in reading, writing, and reckoning. Various ‘adventure,’ ‘chantry,’ and other schools were also absorbed by the burgher schools. Thus these institutions came to represent the educational interests of the industrial classes, and paved the way for the civic control of education. [Sidenote: Impulse caused by Crusades and desire for luxuries.] =The Rise of Commerce and Industry.=--A most important influence in producing a transition from the mediæval to modern times is found in the increase of commerce during the later Middle Ages. From the Roman days down, trade had never died out in Western Europe, especially Italy, despite the injuries wrought by barbarian invasions, as the nobles had always need of luxuries, and the Church of articles of utility in its services. But the demand for vessels and transports during the Crusades, and the desire for the precious stones, silks, perfumes, drugs, spices, and porcelain from the Orient afterward, gave a tremendous impulse to commercial and industrial activity. The people of Europe began to think of what articles others outside their own little groups might want in exchange for these luxuries, and to strive to produce such commodities. They also undertook themselves to make some of the new articles, such as light and gauzy cotton and linen fabrics, silks, velvets, and tapestries. Thus the means of communication between the European states was greatly facilitated, new commercial routes and new regions were opened, geographical knowledge was increased, navigation was developed, maritime and mercantile affairs were organized, manufactures and industries were enlarged, currency was increased, and forms of credit were improved. All this tended toward a larger intellectual view and a partial dissipation of provincialism and intolerance. [Sidenote: Contributed to the growth of cities,]