The use of the pendulum was suggested by a circumstance similar to that which started in Newton’s mind the train of thought that led to the theory of gravitation. Galileo, when under twenty years of age, standing one day in the metropolitan church of Pisa, observed a lamp, which was suspended from the ceiling, and which had been disturbed by accident, swing backwards and forwards. This was a thing so common that thousands, no doubt, had observed it before; but Galileo, struck with the regularity with which it moved backwards and forwards, reflected upon it, and perfected the method now in use of measuring time by means of a pendulum.
A monk named Rivalto mentions, in a sermon preached in Florence in 1305, that spectacles had then been known about twenty years. This would place the invention about the year 1285.
Quills are supposed to have been used for writing-pens in the fifth century, though the conjecture rests mainly on an anecdote of Theodoric, King of the Ostrogoths, who, being so illiterate that he could not write even the initials of his own name, was provided with a plate of gold through which the letters were cut, and, this being placed on the paper when his signature was required, he traced the letters with a quill. The date of the earliest certain account of the modern writing-pen is 636. The next notice occurs in the latter part of the same century, in a Latin sonnet to a pen by Aldhelm, a Saxon author. The reeds formerly employed are still used in some Eastern nations. Steel pens were first made by Wise, in England, in 1803.
The first known treatise on stenography is the curious and scarce little work entitled “Arte of Shorte, Swifte, and Secrete Writing by Character, invented by Timothe Bright, Doctor of Phisike.”
The art of printing, according to Du Halde and the missionaries, was practised in China nearly fifty years before the Christian Era. In the time of Confucius, B.C. 500, books were formed of slips of bamboo; and about 150 years after Christ, paper was first made; A.D. 745, books were bound into leaves; A.D. 900, printing was in general use. The process of printing is simple. The materials consist of a graver, blocks of wood, and a brush, which the printers carry with them from place to place. Without wheel, or wedge, or screw, a printer will throw off more than two thousand five hundred impressions in one day. The paper (thin) can be bought for one-fourth the price in China that it can in any other country. The works of Confucius, six volumes, four hundred leaves, octavo, can be bought for twelve cents.
Stamps for marking wares, packages, &c. were in use among the Roman tradesmen; and it is highly probable that had the modern art of making paper been known to the ancients, they would have diffused among themselves, and transmitted to posterity, printed books.
From the early commercial intercourse of the Venetians with China, there is reason to believe that the knowledge of the art and of its application to the multiplying of books was derived from thence; for Venice is the first place in Europe, of which we have any account, in which it was practised, a Government decree respecting it having been issued October 11, 1441. Previous to the year 1450, all printing had been executed by means of engraved blocks of wood; but about this period, the great and accumulating expense of engraving blocks for each separate work led to the substitution of movable metal types. The credit of this great improvement is given to Peter Schœffer, the assistant and son-in-law of John Faust, of Mentz, (commonly called Dr. Faustus.) The first book printed with the cast metal types was the “Mentz Bible,” which was executed by Faust and Guttemberg, between the years 1450 and 1455.
The Dutch claim to have originated stereotyping. They have, as they say, a prayer-book stereotyped in 1701. The first attempt at stereotyping in America was made in 1775, by Benjamin Mecom, a printer of Philadelphia. He cast plates for a number of pages of the New Testament, but never completed them.
The first printing-press in America was established at Cambridge, Mass., in 1639.