Bi Sheng, Jikji and a Mainz Goldsmith: What Gutenberg Actually Invented, and Why It Shook Europe

Did Gutenberg invent movable type? No, not in the sense of being the first. Movable type was already in use in East Asia centuries before him: the Chinese inventor Bi Sheng made ceramic movable type around 1040, and the oldest surviving book printed with movable metal type, Jikji, was printed in Korea in 1377. What Johannes Gutenberg (c. 1400–1468), a craftsman from Mainz in Germany, did invent was a complete printing system: a way to mass-produce metal type, an oil-based ink that stuck to it, and a wooden press adapted from the screw presses of the time. That system made printing much faster, spread across Europe within decades and helped trigger an information revolution. The fair way to describe him, then, is not as the inventor of the idea, but as the person who turned printing with movable type into a fast, repeatable industry in a place where it could spread.

A patrician's son with no clear path

Gutenberg was born in Mainz, a wealthy city on the Rhine. His exact birth year is unknown; scholars estimate between 1393 and 1406, and 1400 is often used for convenience. His full name, Johannes Gensfleisch zur Laden zum Gutenberg, came partly from the family's houses in the city. His father was a patrician and merchant connected with the city mint. Because his mother came from a non-patrician family, Johannes could never follow his father into the mint, and one historian has suggested that this exclusion pushed him toward his unusual career as an inventor.

Almost nothing is documented about his childhood. He may have studied at the University of Erfurt, where a "Johannes de Altavilla" enrolled in 1418, and by 1434 he was living in Strasbourg, apparently working as a goldsmith and teaching a wealthy tradesman how to polish gems. That metalworking background matters. As a goldsmith he would have known how to cut punches and work with moulds, the very skills needed to cast letters in metal.

Mirrors, debts and a secret project

Gutenberg's first known business went badly. Around 1439 he made polished metal mirrors to sell to pilgrims visiting Aachen, where relics of Charlemagne were going to be displayed. A flood delayed the exhibition by a year, and the money already spent could not be repaid. In Strasbourg around 1440 he is said to have worked on a mysterious venture he called Aventur und Kunst, "enterprise and art", but it is not clear whether this already involved printing.

By 1448 he was back in Mainz borrowing money, and by 1450 a press was running. He persuaded the wealthy moneylender Johann Fust to lend him 800 guilders, and Peter Schöffer, a former scribe who later became Fust's son-in-law, joined the business and probably helped design some of the first typefaces. To pay the bills, the shop printed profitable items such as Latin grammar books and thousands of church indulgences, documented from 1454 to 1455.

The Bible that made his name

With a second loan of 800 guilders from Fust, work on a Bible began in 1452, and in 1455 Gutenberg completed his 42-line Bible. About 180 copies were printed, roughly three quarters on paper and the rest on vellum. A copy sold for 30 florins, about three years' wages for a clerk, which sounds expensive until you remember that a handwritten Bible could take one scribe more than a year to copy. Some copies were decorated by hand after printing so that they looked like fine manuscripts. Forty-eight substantially complete copies survive today.

The project was enormous. Printing the Bible may have needed as many as 100,000 individual pieces of type, and setting a single page could take half a day. Crucially, every copy was identical, a sharp break from manuscripts, where each copy could contain new human errors.

Bankrupt by his own invention

Success on paper did not mean success in business. In the mid-1450s Fust sued, claiming Gutenberg had misused the funds; the two loans had grown with interest to 2,026 guilders. The court ruled for Fust and gave him control of the Bible workshop. In 1457 the Fust–Schöffer shop published the Mainz Psalter, the first European book to name its printers and give a date, and it did not mention Gutenberg at all. Gutenberg seems to have kept printing on a smaller scale, but because his books never carried his name, scholars still argue about which ones are his. In 1465 the Archbishop of Mainz finally recognised his achievement with a court title, a stipend and yearly allowances of grain and wine. He died in 1468, and his grave is now lost.

The East Asian story: Bi Sheng, Wang Zhen and Jikji

To answer the headline question properly, we need to look east. Around 1040, during the Northern Song dynasty, Bi Sheng developed the first known movable-type system, using fired ceramic characters. The scholar Shen Kuo, who described it, noted that it was slow for two or three copies but "marvelously quick" for hundreds or thousands. In 1298 the Yuan official Wang Zhen made more than 30,000 wooden types and used them to print a local history of more than 60,000 characters.

Korea took metal type further. Books printed with metal type are recorded in Goryeo Korea as early as 1234, although none of them survive. Jikji, a Buddhist text printed in 1377, is believed to be the oldest surviving book printed with movable metal type, more than seventy years before Gutenberg's Bible. The French scholar Henri-Jean Martin described Korean metal type as extremely similar to Gutenberg's, but the materials and methods for making type and taking impressions were different. In Korea the technique was also largely limited to the royal foundry and official state publications, which held back its commercial spread.

Did Gutenberg learn from Asia? Historians disagree. Some argue that a report of the Chinese and Korean technique almost certainly travelled west, while others point out that no text shows any knowledge of Asian movable type in Europe before 1450. A Dutch claim that Laurens Coster invented printing before Gutenberg is now regarded as a legend.

So what was new?

Gutenberg's contribution was a combination of parts that worked together. He is credited with a process for mass-producing movable type, oil-based printing ink, adjustable moulds and a wooden press modelled on agricultural screw presses. His type metal, an alloy of lead, tin and antimony, melted at a low temperature, cast well and stayed durable. With a reusable metal matrix, one skilled worker could produce 4,000 to 5,000 pieces of type a day, whereas Wang Zhen's artisans had needed two years to carve 60,000 wooden types.

Even his exact method is debated. In 2001 a physicist and a Princeton librarian compared letters in early Gutenberg prints and found variations that could not come from a single reusable matrix, suggesting he may have used throwaway moulds and that the classic punch-and-matrix method arrived around the 1470s. Others disagree, and the question is still open.

How fast it spread, and what it changed

The speed is the real story. From a single press in Mainz in 1457, Europe had 110 presses by 1480, fifty of them in Italy, and Venice became the centre of the trade. Printing helped power the Renaissance, humanism and the Reformation; Martin Luther's Ninety-five Theses, which attacked the sale of indulgences, circulated widely in print, an irony given that indulgences were among Gutenberg's first products. In 1997 Time–Life chose his invention as the most important of the second millennium, and the oldest digital library, Project Gutenberg, carries his name.

Learn with Gutenberg: English phrases

Phrase	Meaning	Example
to hit the press	to be printed and published	The new edition hits the press next week.
in black and white	written down, official	I want the agreement in black and white.
to stand on the shoulders of giants	to build on earlier people's work	Gutenberg stood on the shoulders of giants.
a game changer	something that changes a situation completely	The printing press was a game changer.
to give credit where credit is due	to praise the right people	Give credit where credit is due: Korea printed Jikji first.

Try this: Write three English sentences about an invention you use every day, using "a game changer" and "give credit where credit is due".