What a difference in private life was made by the introduction of chimneys and glass windows, for glass, though known to antiquity, was not commonly applied to the openings that, as the etymology of the English word implies, let in the wind! By the fifteenth century the power of lenses to magnify and refract had been utilized, as mirrors, then as spectacles, to be followed two centuries later by telescopes and microscopes. Useful chemicals were now first applied to various manufacturing processes, such as the tinning of iron. The compass, with its weird power of pointing north, guided the mariner on uncharted seas. The obscure inventor of gunpowder revolutionized the art of war more than all the famous conquerors had done, and the polity of states more than any of the renowned legislators of antiquity. The equally obscure inventor of mechanical clocks—a great improvement on the {8} older sand-glasses, water-glasses, and candles—made possible a new precision and regularity of daily life, an untold economy of time and effort.
[Sidenote: Printing]
But all other inventions yield to that of printing, the glory of John Gutenberg of Mayence, one of those poor and in their own times obscure geniuses who carry out to fulfilment a great idea at much sacrifice to themselves. The demand for books had been on the increase for a long time, and every effort was made to reproduce them as rapidly and cheaply as possible by the hand of expert copyists, but the applications of this method produced slight result. The introduction of paper, in place of the older vellum or parchment, furnished one of the indispensable pre-requisites to the multiplication of cheap volumes. In the early fifteenth century, the art of the wood-cutter and engraver had advanced sufficiently to allow some books to be printed in this manner, i.e. from carved blocks. This was usually, or at first, done only with books in which a small amount of text went with a large amount of illustration. There are extant, for example, six editions of the Biblia Pauperum, stamped by this method. It was afterwards applied, chiefly in Holland, to a few other books for which there was a large demand, the Latin grammar of Donatus, for example, and a guide-book to Rome known as the Mirabilia Urbis Romae. But at best this method was extremely unsatisfactory; the blocks soon wore out, the text was blurred and difficult to read, the initial expense was large.
The essential feature of Gutenberg's invention was therefore not, as the name implies, printing, or impression, but typography, or the use of type. The printer first had a letter cut in hard metal, this was called the punch; with it he stamped a mould known as the {9} matrix in which he was able to found a large number of exactly identical types of metal, usually of lead.
These, set side by side in a case, for the first time made it possible satisfactorily to print at reasonable cost a large number of copies of the same text, and, when that was done, the types could be taken apart and used for another work.
The earliest surviving specimen of printing—not counting a few undated letters of indulgence—is a fragment on the last judgment completed at Mayence before 1447. In 1450 Gutenberg made a partnership with the rich goldsmith John Fust, and from their press issued, within the next five years, the famous Bible with 42 lines to a page, and a Donatus (Latin grammar) of 32 lines. The printer of the Bible with 36 lines to a page, that is the next oldest surviving monument, was apparently a helper of Gutenberg, who set up an independent press in 1454. Legible, clean-cut, comparatively cheap, these books demonstrated once for all the success of the new art, even though, for illuminated initials, they were still dependent on the hand of the scribe.
[Sidenote: Books and Reading]
In those days before patents the new invention spread with wonderful rapidity, reaching Italy in 1465, Paris in 1470, London in 1480, Stockholm in 1482, Constantinople in 1487, Lisbon in 1490, and Madrid in 1499. Only a few backward countries of Europe remained without a press. By the year 1500 the names of more than one thousand printers are known, and the titles of about 30,000 printed works. Assuming that the editions were small, averaging 300 copies, there would have been in Europe by 1500 about 9,000,000 books, as against the few score thousand manuscripts that lately had held all the precious lore of time. In a few years the price of books sank to one-eighth of what it had been before. "The gentle reader" had started on his career.
{10} The importance of printing cannot be over-estimated. There are few events like it in the history of the world. The whole gigantic swing of modern democracy and of the scientific spirit was released by it. The veil of the temple of religion and of knowledge was rent in twain, and the arcana of the priest and clerk exposed to the gaze of the people. The reading public became the supreme court before whom, from this time, all cases must be argued. The conflict of opinions and parties, of privilege and freedom, of science and obscurantism, was transferred from the secret chamber of a small, privileged, professional, and sacerdotal coterie to the arena of the reading public.
[Sidenote: Exploration]