Renaissance_ A Short History, The - Johnson, Paul [6]
Thus in the later Middle Ages, wealth was being produced in greater quantities than ever before in history, and was often concentrated in cities specializing in the new occupations of large-scale commerce and banking, like Venice and Florence. Such cities were chiefly to be found in the Low Countries, the Rhine Valley and northern and central Italy. As wealth accumulated, those who possessed it gratified their senses by patronizing literature and the arts, and they were joined by sovereigns, popes and princes, who found ways of taxing the new wealth of their subjects. But wealth alone would not have produced the phenomenon we call the Renaissance. Money can command art, but it commands in vain if there are no craftsmen to produce it. Happily, there is evidence everywhere that Europe, in the later Middle Ages, was entering a period of what modern economists call intermediate technology. Especially in the Low Countries, Germany and Italy, thousands of workshops of all kinds emerged, specializing in stone, leather, metal, wood, plaster, chemicals and fabrics, producing a growing variety of luxury goods and machinery. It was chiefly the families of those who worked in these shops that produced the painters and carvers, the sculptors and architects, the writers and decorators, the teachers and scholars responsible for the huge expansion of culture that marked the beginnings of the early modern age.
There was one respect in which the growth of intermediate technology had a direct, explosive effect on this cultural spread. Indeed, it was the most important cultural event by far of the entire period. This was the invention, followed by the extraordinarily rapid diffusion, of printing. The Romans produced a large literature. But in publishing it they were, as in many other fields, markedly conservative. They knew about the codex—that is, a collection of folded and cut sheets, sewn together and enclosed within a binding—but they clung to the old-fashioned scroll as the normative form of book. It was the early Christians who preferred the codex, and the replacement of the scroll by ever more sophisticated codices was the work of the so-called Dark Ages. What the Christians took from the Romans was a version of their screw wine-press to bind the codex.
The material on which the Romans originally wrote was papyrus, the dried leaves of a grass grown along the Nile, and it is from this term that our word “paper” is ultimately derived. But between 200 B.C. and A.D. 300 papyrus was replaced by vellum, calfskin soaked in lime, then smoothed by knife and pumice stone, or parchment, made from the scraped skin of sheep or goats. Vellum was a luxury material, extremely durable, and was used throughout the Middle Ages for the finest manuscripts. Indeed, it continued to be used in the Renaissance, even for printed work, though special care was required to produce satisfactory results. Parchment was cheaper but also durable and continued to be used for certain legal documents until the mid–twentieth century. However, during the Middle Ages both were largely superseded by paper, or cloth parchment as it was originally called. This was produced by an industrial process that turned fibrous material, such as straw, wood, linen or cotton, into pulp, which was then spread in sheets over a wire framework. It came from China via the Moslem world, from which it reached Spain and Sicily. By about 1150 the Spanish had improved on the original process by developing a stamp mill, turned by hand, which used a wheel and tappets to raise and drop pestles in mortars. By the thirteenth century, paper mills were powered by water, and leadership in the industry had shifted to Italy, which by 1285 had developed the practice of sewing a figure of wire into the mold to produce a watermark. Efficiently produced, paper was cheaper than any other writing material by