How the Printing Press Changed the World

Six hundred years ago, a book in Europe was a rare and costly treasure. Each one was copied by hand, letter by letter, by trained writers called scribes. Copying one long book could take months. Only rich families and a few schools could afford books. Most people never owned a single book in their whole lives.

Around 1450, in the German city of Mainz, a goldsmith named Johannes Gutenberg found a faster way. He cast hundreds of small metal letters that could be lined up into words, inked and pressed onto paper. When a page was done, the letters could be taken apart and used again. For the press itself, he borrowed the design of the screw presses that farmers used to squeeze grapes and olives. Gutenberg was not the first to print with movable type. Printers in China and Korea had done it centuries earlier. But his mix of metal letters, oily ink and a strong press worked so well that it spread quickly across Europe.

The results were astonishing. A team at one press could print hundreds of copies of a page in a day. In the same time, a scribe might finish only a few pages. By 1500, print shops were running in more than two hundred European cities. Together they had turned out millions of books. As books grew cheaper, ordinary people could buy them, and many more people had a reason to learn to read.

Cheap books also changed the way ideas traveled. Hand-copied books often picked up mistakes, because a tired scribe could skip a line or misspell a word. Printed copies were nearly identical, so readers in different cities could study the very same pages. Now a scientist's discovery, a doctor's drawings of the human body or a map of a newly explored coast could reach readers in many countries. Printing even helped settle spelling, because printers wanted words to look the same in every book.

Today we send words around the world in seconds. But the idea behind that speed took shape in Gutenberg's workshop: knowledge grows more powerful when many people can share it.