The great British expert on Chinese science history Joseph Needham has written about how the "four great inventions of China," the compass, printing, papermaking and gunpowder, were exported to the rest of the world. Although Needham is good at writing about technology, he doesn't always provide sufficient evidence of transmission for these inventions. Only one of them, paper, can be said with absolute certainty to have reached the West as a fully developed product. According to Professor T.F. Carter, "Back of the invention of printing lies the use of paper, which is the most certain and the most complete of China's inventions."

As Lucien Febvre and Henri-Jean Martin write in The Coming of the Book, "It would have been impossible to invent printing had it not been for the impetus given by paper, which had arrived in Europe from China via the Arabs two centuries earlier and came into general use by the late 14th century." In the period from 1450 to 1550, Europe was becoming covered with paper mills. The traditional parchment was expensive and not well suited for mass production.

During the Protestant Reformation in the sixteenth century, the reformers wanted the Bible to be available in the common language, not in Latin. Martin Luther thus helped shape the modern German language. As scholar Irving Fang states in the book A History of Mass Communication, "Vernacular printing also led French readers to think of themselves as being part of France, and English readers to regard themselves as part of England."

In some ways, we are witnessing a reversal of this trend towards nationalization now with global communications and the rise of English as an international lingua franca. Febvre and Martin believe, though, that about 77% of the books printed before 1500 were still in Latin, with religious books still predominant. This gradually gave way to secular books and other languages, but "it was not until the late 17th century that Latin was finally overthrown and replaced by the other national languages and by French as the natural language of philosophy, science and diplomacy. Every educated European then had to know French." They estimate that about 20 million books were printed in Europe before the year 1500, and that "between 150-200 million copies were published in the 16th century. This is a conservative estimate and probably well below the actual figure." This is even more impressive if we remember that Europe of that day was far less populous than it is now and that only a minority could read. There was obviously a change then, and a swift one, compared to the slow, expensive and sometimes inaccurate process of copying each individual book by hand.

Printing did have a major impact in East Asia, but it didn't trigger quite the same revolution as it did in the West. Buddhism came to Japan via China and Korea, and Buddhist monks also brought with them, in addition to tea and thus the basis for the elaborate Japanese tea ceremonies, other aspects of Chinese civilization, among them printing in the eight century. Yet until the late sixteenth century the Japanese printed only Buddhist scriptures. Europe also benefited from having a more diverse book trade than China and from having more competition in general.

As Irving Fang states, "Printing had not disturbed the monolithic Chinese empire. The introduction of printing in mid-fifteenth century Europe might also have made little headway if Europe were not ripe for change." According to him, the "establishment of European universities from the twelfth century onward marked the end of the 700-year-old Monastic Age. The more secular age that followed saw the emergence of a literate middle class and a rising demand for books of all kinds."

Movable type printing had been invented in China by Bi Sheng around 1040, but it never gained widespread popularity. The nature of the Chinese language with its nonalphabetic script presumably didn't help. To solve this dilemma, in the first half of the 1400s the Korean King Sejong the Great encouraged book production and ordered his scholars to create an alphabet for the common people as opposed to the complicated Chinese script with its thousands of characters. They produced hangul, "Korean letters," a phonetic system inspired by other alphabetic scripts, among them Sanskrit.

Movable type printing with metal types and an alphabetic script was thus in use in Korea before Gutenberg began printing Bibles in Germany, but there are no indications of a connection between what happened in Korea and what happened in Europe. The geographical distance is too big and the time difference too small to make such a connection likely. The Chinese used baked clay for their characters, and only started employing metal types after their use in Europe. Gutenberg was a goldsmith and naturally created his letters out of metal.

According to Fang, "What Gutenberg produced that did not exist in Asia was a printing system. Most obvious among its elements were controlled, exact dimensions of alphabet type cast from metal punches made of hardened steel. These were not unlike the dies, stamps, and punches that were well known to European leather workers, metalsmiths, and pewter makers."

Although possible, no link between the Eastern and the Western printing traditions has ever been conclusively proven. The different nature of the systems involved has caused many historians to believe that printing was developed in Europe independently of Asia. In contrast, we know with 100% certainty that Muslims were familiar with East Asian printing. The Mongols left a trail of devastation across much of Eurasia in the 1200s, but their vast empire did open up unprecedented opportunities for cultural exchange. As scholar Thomas T. Allsen shows, however, being exposed to foreign ideas doesn't necessarily mean that you will adopt them. Local scholars often clung to the inherited tradition. He uses Russia at the time of Peter the Great as an example where some elements of that society were fanatically opposed to all innovation while others enthusiastically embraced all things foreign. Allsen has described how the authorities in Iran under Mongolian rule in 1294 attempted to introduce Chinese-style printed banknotes, but failed, despite severe threats, due to massive popular resistance:

"Certainly the Muslim world exhibited an active and sustained opposition to movable type technologies emanating from Europe in the fifteenth century and later. This opposition, based on social, religious, and political considerations, lasted well into the eighteenth century. Only then were presses of European origin introduced into the Ottoman Empire and only in the next century did printing become widespread in the Arab world and Iran. This long-term reluctance, the disinterest in European typography, and the failure to exploit the indigenous printing traditions of Egypt certainly argue for some kind of fundamental structural or ideological antipathy to this particular technology."

I am definitely not a believer in technological determinism, but some technologies do have a greater impact than others. One of the most important inventions ever made has to be printing. Surely it is no coincidence that the Scientific Revolution decisively took off in Europe after the introduction of printing, just as it is not a coincidence that the one civilization that came closest to a similar breakthrough, China, was the one where printing had first been invented. It is likely that the rejection of printing alone set the Islamic world back centuries vis-